GMEOW Accounts ModuleGMEOW Spatial Aggregation ModuleGMEOW Agreements ModuleGMEOW Attestation ModuleGMEOW Contacts ModuleGMEOW Core ModuleGMEOW Coreference ModuleGMEOW Documents ModuleGMEOW Email ModuleGMEOW Entities ModuleGMEOW Events ModuleGMEOW Expertise ModuleGMEOW Gender ModuleGMEOW Genealogy ModuleGMEOW Languages ModuleGMEOW Lifecycle ModuleGMEOW Messaging Trust ModuleGMEOW Names ModuleGMEOW Narrative ModuleGMEOW Observations ModuleGMEOW Organization ModuleGMEOW Profile Meta-pattern ModuleGMEOW Provenance ModuleGMEOW Data Quality ModuleGMEOW Rights & IP ModuleGMEOW Sensory Environment ModuleGMEOW Sexuality ModuleGMEOW Software ModuleGMEOW Sources ModuleGMEOW Standpoint ModuleGMEOW Tags ModuleGMEOW Temporal ModuleGMEOW Trust ModuleGMEOW Versions ModuleGMEOW Locations ModuleGMEOW Accessibility ModuleGMEOW Connectivity ModuleGMEOW — Global Metadata and Entity Ontology for the WebGMEOW

An interpersonal relationship of social acquaintance — agents who have met and know one another (the reified form of hasMet).

A parent-child relationship established by adoption.

A written work published in a periodical, blog, or scholarly venue.

A parent-child relationship by biological descent.

An address-controlled account on a blockchain or distributed ledger — the entity that holds assets, signs transactions, or controls a smart contract. Aligns to CAIP-10 account identifiers and did:pkh.

A concrete published edition or release of a book — an out-of-universe information object and rights-bearing publication artifact. Distinct from the in-universe narrative frame it contributes to; linked via gmeow:sourceFor.

A legally enforceable agreement.

An educational or occupational credential held by an agent — a degree, certification, or license.

A DomainKeys Identified Mail signature (RFC 6376) over selected headers and the body.

A collection of data published as a unit.

A kinship group of persons related by descent, marriage, or adoption.

A parent-child relationship through fostering.

The activity of creating or generating a language — a conlanger's design work or an AI model's generation run. Linked to its product by gmeow:wasGeneratedBy (the language → activity) and to its agent by gmeow:wasAssociatedWith; the language is ascribed to its creator with gmeow:wasAttributedTo (a gmeow:SoftwareAgent for an AI-generated language).

A concrete, dated revision of a language that is itself a fully usable language (Ithkuil 1993 / 2011 / New Ithkuil; an AI language v1 / v2). Subclass of gmeow:Language so a version bears its own scripts, names and status; gmeow:versionOf links it to the lineage language, gmeow:supersedes orders versions, and gmeow:wasDerivedFrom records derivation. Forward-looking for rapidly-versioned AI languages.

An alias for gmeow:Quantity — the measured-value perspective on the same value×unit/frame×determinacy×provenance bundle (#77). Equivalent to gmeow:Quantity and gmeow:ScalarQuantity. Provided for consumers who prefer the 'measured value' terminology common in metrology and sensor standards.

• gufo:Object
• Entity ^c

An image, audio, or video media file.

An OpenPGP signature (RFC 4880/9580, PGP-MIME RFC 3156) over a message, bound to a PGP key.

A granted or filed patent describing an invention.

An entity that is a material thing occupying space and time — a device, instrument, vehicle, building, or natural body. Distinct from Agent (which acts and bears responsibility) and InformationObject (which carries information content). The sortal for pose-bearing, sensor-hosting, and spatially-located things that are not agents.

• gufo:Object
• Entity ^c

A DEFINED specialization of gmeow:NameUsage whose named entity is a gmeow:Place — a time/audience/register-scoped use of a toponym. Defined, NOT asserted: any NameUsage that names a Place is inferred to be a PlaceNaming (≡ gmeow:NameUsage ⊓ ∃gmeow:usageNamed.gmeow:Place), so place-naming reuses the NameUsage relator instead of minting a parallel relator (Principle 6, greenfield/no-redundancy). The reified counterpart of CIDOC-CRM's time-spanned crm:E48 Place Name / crm:E41 Appellation. Competing and historical place names coexist as co-equal PlaceNamings with no primary; superseded ones set gmeow:displayable false (Principle 10). The toponymic authority is gmeow:usageAuthority; the name's language is gmeow:nameLanguage on the bound gmeow:PlaceName (reached via gmeow:usageAppellation).

An interpersonal relationship arising from work — colleagues, collaborators, a client and a provider (the reified form of hasWorkedWith).

An S/MIME signature (RFC 8551) over a message, bound to an X.509 certificate.

An observation produced by a sensor or sensory apparatus reading a physical property of the environment. Specialises Observation with sensor-specific properties (sensory property, sensor platform, sampling feature).

A single issue, episode, or chapter of a serial creative work — a comic issue, TV episode, magazine issue, or serial chapter. An out-of-universe publication artifact distinct from the narrative frame it sources.

A parent-child relationship through marriage to a biological/adoptive parent.

A condensed account derived from a source information object (often machine-generated), linked to its source by gmeow:wasDerivedFrom.

A contact point reachable by telephone.

The text content extracted from a source object (e.g. a PDF attachment), linked to its source by gmeow:wasDerivedFrom.

An appellation borne by an agreement — a formal title, short name, or multilingual version of a contract or legal instrument. Carries its own gmeow:nameLanguage and gmeow:nameScript so co-equal multilingual names are separate first-class objects.

The policy or framework under which an attestation was issued — a value vocabulary (individuals, never subclasses). Open-ended; specific policies are minted as needed.

A sequence-level container locus — a chromosome, contig, scaffold, or the sequence itself — that hosts SequenceFeature annotations via gmeow:hasSequenceFeature. The features themselves (genes, exons, SNPs, etc.) are SequenceFeature instances with their own coordinates and types; they are not BiologicalSequenceLocation instances.

A blockchain network identified by a chain identifier (e.g. CAIP-2 chainId).

A reference to a specific place within a source (a page, entry, image, or record locator).

A reified couple relationship (marriage, civil union, or partnership) between two persons; bears marriage, divorce and related events.

An appellation borne by a creative work — a document title, article headline, dataset name, or media title. Carries its own gmeow:nameLanguage and gmeow:nameScript so co-equal multilingual titles (e.g. 'The Matrix' / '黑客帝国') are separate first-class objects, never alternateName subordinates.

A bounded textual or digital document — a file, record, or report.

An appellation borne by a digital file — a stem and an extension. The extension CLAIMS a content type (gmeow:claimedMediaType) which may disagree with the type detected from the bytes (gmeow:detectedMediaType); the disagreement is recorded as coexisting claims with confidence, never reasoned into a contradiction.

A grammar-defined language with a machine modality and no human native speakers — programming, markup, query, logic, schema, and configuration languages. A thin structural split from gmeow:Language (the sociolinguistic facets — endonym/exonym, co-mingled scripts, native-speaker status — do not apply), complemented by the gmeow:languageOrigin value for fine-grained classification.

A collection of agents treated as a unit without the formal structure of an organization.

• gufo:Collection
• Entity ^c

An activity that ingested an external source artifact (an import envelope such as a vCard file) and recorded the claims it carried. Carries the ingestion (transaction) time — when the system learned the claims, distinct from when they were asserted or when they hold.

An event emitted by a smart contract or recorded on a ledger — a log entry, oracle callback, or bridge message.

A transaction recorded on a distributed ledger or blockchain — the information-object representation of the payload, not the on-chain bytes themselves.

An event in the life of a person or family — a birth, death, marriage, christening, name change, and so on — to which sources and confidence can be attached. A thin, person-scoped phase of gmeow:Event (NOT a type taxonomy): the specific kind is a gmeow:eventType value (gmeow:eventTypeBirth, …). The seam joining the names module to the event spine: gmeow:conferredByEvent ranges over it.

A kind of work or profession, such as those classified by ESCO or SOC.

An appellation borne by an organization — a legal name, a trading / 'doing-business-as' name, or a former name.

A structured, typed name borne by a person — birth name, married name, chosen name, alias, religious name — with ordered, typed name parts, an optional honorific, a script/language, and a purpose (gmeow:namePurpose). A person bears many co-equal PersonNames (across life stages and across languages/scripts); their validity period is carried with gmeow:validFrom/validUntil on the bearing statement or by a gmeow:NameUsage.

An appellation (toponym) borne by a geographic place via gmeow:hasPlaceName — possibly endonym/exonym (gmeow:namePurpose), multilingual, or historical (held over a period via a gmeow:NameUsage / inferred gmeow:PlaceNaming). The structured, first-class replacement for the retired flat gmeow:alternateName literal, used for gazetteer matching and co-equal multilingual/historical naming.

A human- or machine-readable privacy notice informing data subjects about the processing of their personal data — the information-object counterpart of a dpv:PrivacyNotice / schema:PrivacyPolicy. It may be attached to a RightsStatement or to the entity whose data is governed.

A formal language for expressing executable computation (Python, Rust, SQL-as-implemented). The first-class target of gmeow:writtenInLanguage, by which a software project declares the languages it is written in.

A universal scalar numeric value bundled with unit/frame, determinacy, and provenance — the synthesis of FRAME-GEN + DET-GEN + OBS (#77). Equivalent to gmeow:ScalarQuantity; the domain-neutral name for the same construct. Used for temperatures, distances, counts, probabilities, masses, prices, and any other quantitative observation result. The value lives in gmeow:quantityValue; the unit/frame in gmeow:hasUnit / gmeow:hasReferenceFrame; the determinacy in gmeow:hasDeterminacy; the provenance in gmeow:isResultOf.

• gufo:Object
• Entity ^c

The spatial locus, observatory, timezone, or planetary body relative to which a time is expressed — e.g. an observatory longitude for local sidereal time, an IANA timezone for civil time, or a planet for planetary calendars.

• gufo:Object
• Entity ^c

A version-control repository holding the source code of a software project.

A function or position an agent plays in some context, such as a job title or organizational role.

A competency or ability an agent possesses.

A deployed program on a blockchain or distributed ledger, identified by a contract address.

A software process or autonomous program that acts on behalf of a person or organization.

An appellation borne by a software project — a product name, project name, or package name. Carries its own gmeow:nameLanguage and gmeow:nameScript so co-equal multilingual names (e.g. localized product names) are separate first-class objects.

A place that serves as a spatial bin in an aggregation grid — a generated region used to partition space for statistical summarisation. Its geometry defines the bin boundary; its aggregation result is a SpatialAggregation.

A conversation: a set of messages related by reply/reference chains.

An activity that checks a signature, attestation, artifact, or ledger inclusion proof — performed by a verifier agent or software. The outcome is a gmeow:VerificationResult, not a global truth assertion.

A page on the web identified by a URL.

The reified, time-scoped fact that an agent held a contact point (e.g. an email address) over a particular interval.

• address holder ^op
• tenured contact point ^op

A non-inline body part presented as an attached file. An attachment may also be a gmeow:Document or gmeow:MediaObject (the two are not disjoint), and its text extraction or summary is a derived object linked by gmeow:wasDerivedFrom.

A concrete carrier of an attestation — in-toto JSON, SLSA provenance, W3C Verifiable Credential, DSSE envelope, C2PA manifest, EAT token, signed RDF graph, SCITT signed statement, nanopublication, signed git tag, release manifest, or signed blockchain payload. The artifact is the serialization; the Attestation is the logical vouching act that the artifact carries.

A block of transactions on a distributed ledger or blockchain.

• block hash ^dp
• block number ^dp

• block hash ^dp some Literal ^c
  
• block number ^dp some xsd:integer ^c
  

A measurement of the maximum number of entities a location can hold. The location is the observedFeature; the result is a ScalarQuantity. The entity kind being counted is implicit from the location's placeType and the ScalarQuantity's hasUnit (P11). A contested capacity (e.g., fire code vs. venue claim) is modelled as multiple co-existing Capacity measurements, each standpoint-indexed and confidence-weighted, never collapsing to a single winner (P9). A superseded capacity (e.g., after renovation) is suppressed via displayable false, never deleted (P10).

An astronomical location — a position on the celestial sphere, a solar-system body, a spacecraft, or a deep-sky object. The specific kind is given by gmeow:celestialObjectType (a value), not a subclass, so any astronomical object from star to galaxy cluster can be a first-class entity with its own coordinates and external identifiers (SIMBAD, NED, VizieR).

• celestial object type ^op
• has celestial coordinates ^op

A reified traversable link between two entities, able to bear its own period, cost, weight, bandwidth, confidence, and standpoint. The flat shortcut is gmeow:connectsTo; promote to Connection when metadata matters.

• connection source ^op
• connection target ^op

The reified, time-scoped fact that a place was contained in a larger place over an interval — for boundary changes, re-organisations, and disputed parallel parents. Reifies containedInPlace over time; the plain transitive property remains the flat shortcut.

• containment child ^op
• containment parent ^op

• containment child ^op some Place ^c
  
• containment parent ^op some Place ^c
  

A length of time as a quantity, independent of when it occurs — the running time of an event, a gap, a recurrence period. Carries an xsd:duration via gmeow:durationValue. (= time:Duration / time:TemporalDuration, schema:Duration, ISO-TimeML TIMEX3 type=DURATION, TEO Duration.)

A reified kinship relationship between persons, modelled as an observation (a claim-from-a-vantage) in the universal stack (#69). Able to bear its own events, dates, sources, and standpoint-indexed claims. A disputed kinship is several coexisting gmeow:accordingTo-annotated relators, none privileged (Principle 9). The relationshipParent and relationshipChild are co-observed features of the observation.

• gufo:Relator
• Observation ^c

• Couple Relationship ^c
• Parent-Child Relationship ^c

The reified, time-scoped fact that a message resided in a mailbox/label over an interval (membership is time-varying — messages move between folders and labels).

• residence mailbox ^op
• resident message ^op

A measurement of the current number of entities located at or within a location. The location is the observedFeature; the result is a ScalarQuantity. Typically computed by the solver layer from locatedAt relationships and active LocationState instances (P12), but may also be asserted directly from sensor readings or manual counts.

A rule that forbids the exercise of a gmeow:RightsAction over the governed asset (odrl:Prohibition).

A measurement of distance, dissimilarity, or proximity between two entities, expressed as a scalar quantity in a reference frame that declares its metric kind. The observedFeature is the entity measured from; gmeow:proximityTo names the target entity; gmeow:observationResult points to the scalar value. Computed by the solver (Principle 12), not asserted in the OWL core.

A reified assessment of the quality of an entity or dataset, expressed as an observation about one or more quality dimensions. The result is typically a scalar quantity (accuracy in metres, completeness as a percentage, etc.) or a categorical conformance statement, carrying unit, reference frame, determinacy, and provenance in the same bundle as every other GMEOW measurement (Principle 11).

• quality dimension ^op
• assessed entity ^op

A rule by which a gmeow:EventSeries repeats — weekly, every-first-Monday, annually. Carries an RFC 5545 RRULE string via gmeow:recurrenceRuleText. (= ISO-TimeML TIMEX3 type=SET with freq/quant, iCalendar RRULE, schema:Schedule, TEO periodic time interval.)

A standpoint-indexed perceived value about a SensoryEnvironment — a subjective claim made by a perceiver (vantage) about ambient conditions (observedFeature), yielding a result in a MentalReferenceFrame. A SensoryPerception is a StandpointClaim specialised to the sensory domain: the vantage is the perceiver, the observedFeature is the SensoryEnvironment, and the observationResult is the perceived value (a ScalarQuantity, categorical individual, or structured percept descriptor). Competing perceptions coexist without collapse (Principle 9); superseded perceptions are suppressed, never deleted (Principle 10).

A namespaced set of tags — a project vocabulary, a personal tag bucket, or a controlled vocabulary. Multi-tenant: many schemes coexist, and a tag may belong to zero or more schemes (gmeow:tagInScheme). The counterpart of skos:ConceptScheme and schema:DefinedTermSet.

• tag in scheme ^op
• tagging scheme ^op

A measurement of the ratio of current occupancy to maximum capacity at a location, typically expressed as a ratio (0–1) or percentage. The location is the observedFeature; the result is a ScalarQuantity. Computed by the solver layer (P12) from capacity and occupancy measurements, not asserted directly in the canonical core.

A first-class information object representing a version family or release lineage — the set of all concrete artifacts that are versions of a common stable entity. A VersionSet is an InformationObject (a kind of Entity) so it can carry identifiers, provenance, and authority links. Examples: the lineage of a software project, the edition chain of a book, the variant family of an email thread, the DOI concept record.

A reified claim that a location or connection has a positive accessibility feature, a barrier, or a limited status for a given facet. Bears provenance (vantage, confidence, temporal scope) and suppression (displayable false — Principle 10). The flat shortcuts are gmeow:hasAccessibilityFeature and gmeow:hasBarrier; promote to AccessibilityAssertion when the claim itself must be a node.

• assertion facet ^op
• assertion polarity ^op
• assertion subject ^op

• assertion subject ^op some Entity ^c
  
• assertion facet ^op some Accessibility Facet ^c
  
• assertion polarity ^op some Accessibility Polarity ^c
  

A MIME part of a message's body, with a media type and content.

A rule that obliges the discharge of a gmeow:RightsAction (e.g. attribute, share-alike, obtain-consent) as a condition of a permission (odrl:Duty / odrl:obligation; CC REL cc:requires).

• has duty ^op
• rule consequence ^op

The reified, time-scoped fact that an entity existed over an interval — a gufo:Situation that carries its period via gmeow:duringInterval (inherited from TimeScopedRelation). Use when the existence claim is contested (two sources disagree on when a place ceased to exist), when evidence must be attached, or when standpoint indexing is needed. Flat-first: the common case uses gmeow:hasCreationEvent / gmeow:hasDestructionEvent / gmeow:existenceInterval directly on the entity.

• existence creation event ^op
• existence destruction event ^op
• existence entity ^op

A recurrence or schedule that issues a series of concrete gmeow:Event occurrences — a weekly standup, an annual conference. Distinct from any one occurrence; the recurrence rule is a projection concern (iCalendar RRULE), not a core property.

• has recurrence rule ^op
• series occurrence ^op

A person's SELF-ASSERTED gender expression — how they present (a gmeow:GenderExpressionStyle value via gmeow:expressionValue). A distinct axis from gender identity: expression is never inferred from identity (or vice versa), nor from sex or address.

A person's SELF-ASSERTED gender identity — what they are — as a reified facet pointing (via gmeow:genderValue) to an open gmeow:Gender value. Independent of pronouns/honorifics (address), of gender expression, and of sex-assigned-at-birth; nothing infers any of these from another. Multiple co-equal GenderIdentity facets express bigender/genderfluid/transition without privileging any.

Whether an honorific is rendered before (prefix) or after (suffix) the name.

The reified, time-scoped fact that a place was governed by a particular polity over an interval — a sovereignty or administrative jurisdiction claim. Non-functional on the place: contested sovereignty (e.g. Crimea-class) is modelled as multiple co-existing JurisdictionTenures, each standpoint-indexed and confidence-weighted, never collapsing to a single winner (Principle 9).

• jurisdiction determinacy ^op
• jurisdiction place ^op
• jurisdiction polity ^op

• jurisdiction place ^op some Place ^c
  
• jurisdiction polity ^op some Agent ^c
  

A boolean combination of constraints under a gmeow:constraintLogic operator (odrl:and / odrl:or / odrl:xone / odrl:andSequence) over its gmeow:logicConstraintMember constraints — the ODRL LogicalConstraint, modelling the deontic constraint logic.

• constraint logic ^op
• logic constraint member ^op

• constraint logic ^op some Constraint Logic ^c
  
• logic constraint member ^op some Constraint ^c
  

A brand / sign / name / logo that can be trademarked — the thing a gmeow:Trademark protects (schema:Brand). An information object: it may itself bear a gmeow:RightsStatement (logos are also copyright works).

The reified relationship by which an agent is a member of an organization, optionally playing a role over a period of time.

• has role ^op
• membership member ^op
• membership organization ^op

A reified relator that binds a source narrative frame, a target narrative frame, and the relation type between them into a single node. The canonical form when the specific frame-to-frame relation must itself be a node (e.g. to attach provenance, confidence, temporal scope, or standpoint); the flat shortcuts are gmeow:hasNarrativeFrameRelation and gmeow:relatesToFrame. Structurally the Tagging/NameUsage idiom wearing a different hat.

• narrative frame link relation ^op
• narrative frame link source ^op
• narrative frame link target ^op

A rule that grants the ability to exercise a gmeow:RightsAction over the governed asset (odrl:Permission). Its required duties ride gmeow:hasDuty.

A person's SELF-ASSERTED romantic orientation — the pattern of their romantic attraction — as a reified facet pointing (via gmeow:romanticOrientationValue) to an open gmeow:RomanticOrientationValue. A SEPARATE axis from sexual orientation (split-attraction model); the two are mutually independent (e.g. asexual yet biromantic).

A feature or annotation on a biological sequence — a range with start, end, strand, and type, expressed in a reference assembly frame. The first-class entity that carries the coordinates and type; linked to a BiologicalSequenceLocation via gmeow:hasSequenceFeature.

• gufo:Object
• Entity ^c

• has sequence coordinates ^op
• sequence feature type ^op

A person's SELF-ASSERTED sexual orientation — the pattern of their sexual attraction — as a reified facet pointing (via gmeow:sexualOrientationValue) to an open gmeow:SexualOrientationValue. A SEPARATE axis from romantic orientation (split-attraction model) and from gender identity/expression; nothing infers one from another.

A measurement that aggregates entities located within a spatial region, yielding a scalar result such as a count, density, or average. The aggregation region is the observedFeature; the result is a ScalarQuantity. The actual computation is performed by the solver layer (Principle 12), not materialised as asserted triples in the OWL core.

• aggregation function ^op
• has bin ^op
• minimum population ^dp

A set of coordinate values representing a position in a specific coordinate reference frame.

• gufo:Object
• Entity ^c

A measurement that assigns a spatial property — coordinates, geometry, pose, or spatial extent — to a feature of interest. The parent of CoordinateObservation and other spatial measurement specialisations. Realises the spatial side of Principle 3 (Observation ≡ Measurement ≡ Standpoint).

• vantage ^op some Agent ^c
  
• observed feature ^op some Entity ^c
  

The reified, time-scoped fact that a standpoint held a particular position over an interval — recognition granted in 2008 and withdrawn in 2030 is an opened-then-closed tenure, never a deletion (Principle 10). Use only when the adoption / withdrawal of the position is itself worth modelling; the common case is a bare gmeow:accordingTo annotation. Carries its standpoint-time interval via gmeow:duringInterval (temporal module). A StandpointTenure generates a gmeow:standpointClaim observation. The tenure is the time-scoped fact; the claim is the observation of that fact. The tenureStandpoint maps to the claim's vantage; the tenurePosition maps to the claim's observedFeature.

• tenure position ^op
• standpoint claim ^op
• tenure standpoint ^op

• tenure standpoint ^op some Standpoint ^c
  
• standpoint claim ^op some Standpoint Claim ^c
  

An append-only registry evidence record such as a Rekor entry, SCITT receipt, certificate-transparency log entry, or timestamp/notary log entry. Proves inclusion at a point in time, not correctness (Principle 1).

• log entry index ^dp
• log entry URL ^dp

• log entry URL ^dp some Literal ^c
  
• log entry index ^dp some xsd:integer ^c
  

An information object recording the outcome of a verification activity — verified, failed, unverified, expired, revoked, policy-failed, finality-pending, etc. A verification result is an observation output, not an axiom of correctness (Principle 12).

• verified by ^op
• has verification status ^op

The outcome of an email authentication check (RFC 8601 Authentication-Results) — a method (DKIM, SPF, DMARC, ARC), a verdict, and the verifying server.

• authentication method ^dp
• authentication result ^dp
• authentication server ^dp

A point on the celestial sphere expressed as right ascension, declination, and an optional epoch — frame-relative per Principle 11. The reference frame (ICRS, FK5, Galactic, etc.) is declared via gmeow:coordinateFrame.

• gufo:Object
• Entity ^c

• celestial epoch ^dp
• declination ^dp
• right ascension ^dp

A reified attestation that a cryptographic key belongs to a given identity, made by a certifying agent (a PGP key-signature / Web-of-Trust certification). Its validity window is carried with gmeow:validFrom/validUntil; revocation sets validUntil.

• certification level ^dp
• certified identity ^op
• certified key ^op
• certifier ^op

• certifier ^op some Agent ^c
  
• certified key ^op some Cryptographic Key ^c
  
• certified identity ^op some Agent ^c
  

A policy conflict-resolution strategy — the ODRL conflict values perm / prohibit / invalid.

A multi-dimensional numeric value expressed as a coordinate matrix or vector — the generalisation of ScalarQuantity to vector, matrix, and tensor results. Carries a serialised matrix literal (matrixValue), shape descriptor (matrixShape), reference frame (hasReferenceFrame), unit (hasUnit), and determinacy (hasDeterminacy). Used for colourspace tuples [j,k,l]+intensity, audio spectra, thermal images, and air-quality compound readings. The actual matrix algebra (dot products, transforms, decompositions) lives in the solver layer (Principle 12).

• gufo:Object
• Entity ^c

• coordinate matrix frame ^op
• matrix shape ^dp
• matrix value ^dp

A spatial measurement that assigns geographic coordinates or geometry to a place. Reifies the act of coordinate assignment so that multiple surveys (GPS 2023, LiDAR 2024) coexist as standpoint-indexed observations (Principle 9), each carrying its own reference frame, confidence, and temporal scope. Neither observation is 'the' coordinates. Superseded surveys are suppressed via gmeow:displayable false, never deleted (Principle 10).

• coordinate observation of ^op
• coordinate result ^op
• geometry result ^op

• vantage ^op some Agent ^c
  
• observed feature ^op some Place ^c
  

A single RFC 5322 header field (name and value) of a message.

• header name ^dp
• header value ^dp

• has header ^op
• participant header ^op

A network-layer address or locator expressed as a coordinate in a network reference frame — an IP address, MAC address, DNS name, URL, port number, or BGP autonomous-system number. The flat shortcut for the common case is gmeow:accessUrl on a VirtualLocation; promote to NetworkAddress when frame, provenance, confidence, or standpoint matters.

• network address frame ^op
• network address type ^op
• network address value ^dp

A reified participation of an entity in an event, in a role, over a period, on some evidence — the same relator idiom as gmeow:NameUsage. Mint one Participation per (event, participant, role) tuple when role / period / confidence / evidence must be recorded; the 80% case uses the flat gmeow:hasParticipant. Perspectival and co-equal: a disputed role is several standpoint-indexed Participations that coexist, none privileged; a withdrawn one is kept with gmeow:displayable false, never deleted.

• participation interval ^op
• participation role ^op
• participation event ^op
• participation participant ^op

• participation event ^op some Event ^c
  
• participation participant ^op some Entity ^c
  

A software project: a body of source code developed and released as a unit, with repositories, releases, and contributors.

• developer ^op
• has repository ^op
• has software name ^op
• written in language ^op

An observation made from a specific standpoint or frame — an assertion, denial, or qualified position that a proposition holds. Realises the standpoint side of Principle #3 (Observation ≡ Measurement ≡ Standpoint). The vantage is the standpoint; the observedFeature is the proposition or fact being claimed; the observationResult is the modality (unequivocal, probable, conceivable, refuted).

The strand direction of a feature on a double-stranded biological sequence (forward / Watson, reverse / Crick, or both). A value, not a subclass: the set is closed and they share the same structure.

A continuous path of motion representing the space-time history of a moving entity.

• gufo:Object
• Entity ^c

• has trajectory sample ^op
• trajectory of ^op
• trajectory reference frame ^op

The magnitude scale of a version change — a VALUE, never an Entity subclass. Used for SemVer-style classification and analogous schemes in non-software domains.

A non-geographic location reachable online — a video-conference room, chat space, metaverse room, website, or social media page. The specific kind is given by gmeow:virtualLocationType (a value), not a subclass. Has network addresses (gmeow:hasNetworkAddress) and an access URL (gmeow:accessUrl) rather than geographic coordinates.

• access URL ^dp
• has network address ^op
• virtual location type ^op
• virtual platform ^dp

A reified, role- and period-scoped use of a writing system by a language — the gufo:Relator binding {language} × {writing system} × {role} × {period}, mirroring names' gmeow:NameUsage. Lets Japanese co-mingle Han (logographic content), Hiragana (syllabic grammar), Katakana (loanwords) and Latin (transliteration) co-equally, and models script changes over time (Turkish Arabic→Latin, 1928) via the usage's validity. Mint one usage per (language, writing system, role) tuple.

• script role ^op
• script usage interval ^op
• usage language ^op
• usage writing system ^op

The polarity of an accessibility assertion — feature (positive), barrier (negative), or limited (partial).

Something that occurs over a period of time and acts upon or with entities — creating, transforming, using, or attributing them.

• Language Creation ^c
• Import Activity ^c
• Verification Activity ^c

A mutual understanding between two or more agents that creates obligations or rights, reified as a relator connecting its parties.

• has agreement name ^op
• has party ^op

• Contract ^c
• License ^c

A single ODRL constraint comparison: a gmeow:leftOperand (the dimension tested), a gmeow:constraintOperator (the comparison), and a gmeow:rightOperand (the value). E.g. leftOperand dateTime, operator lteq, rightOperand 2030-01-01 — 'valid until 2030'.

• right operand ^dp
• right operand reference ^op
• constraint operator ^op
• left operand ^op

• left operand ^op some Left Operand ^c
  
• constraint operator ^op some Constraint Operator ^c
  

A structured identifier for a land-administration record — a parcel number, folio identifier, title number, lot reference, or survey plan reference issued by a cadastral registry. Carries the reference value, its type, the issuing authority, and the jurisdiction under which it is valid. Temporal validity (re-survey, re-numbering) is carried with validFrom / validUntil on the reference itself.

• reference authority ^op
• reference jurisdiction ^op
• reference type ^op
• reference value ^dp

The origin of a celestial coordinate system (topocentric, geocentric, barycentric, heliocentric, etc.). A value vocabulary aligned to IVOA refposition.

The abstract base of a condition on a rights rule (odrl:Constraint) — specialised by gmeow:AtomicConstraint (a leftOperand / operator / rightOperand comparison, e.g. dateTime ≤ 2030, spatial = EU, count ≤ 5) and gmeow:LogicalConstraint (a boolean combination of constraints). A licence's temporal bound is an AtomicConstraint over the dateTime operand.

• rule constraint ^op
• logic constraint member ^op

• Logical Constraint ^c
• Atomic Constraint ^c

A geographic point expressed as latitude, longitude, and optional elevation.

• elevation ^dp
• latitude ^dp
• longitude ^dp

• has coordinates ^op
• coordinate result ^op

The grammatical aspect of an event mention in text — a VALUE vocabulary for ISO-TimeML interoperability (perfective / progressive / perfective-progressive / none).

The grammatical tense of an event mention in text — a VALUE vocabulary for ISO-TimeML interoperability (past / present / future / none). Describes the linguistic realization, not the occurrence.

A reified, SELF-ASSERTED claim about an aspect of a person's identity — an observation in the universal claim stack (#69): gender identity, gender expression, or (in the sexuality module) sexual/romantic orientation — mediating the person (facetSubject / observedFeature) and an open identity value. A gufo:Relator and a gmeow:Observation, the same idiom as gmeow:NameUsage. A person bears MANY co-equal facets (e.g. bigender); none is privileged, there is no preferred/primary marker, and a superseded facet is kept with gmeow:displayable false rather than deleted. Self-assertion (gmeow:selfAsserted) is the top authority; the optional validity period is carried by gmeow:validFrom/validUntil on the facet.

• gufo:Relator
• Observation ^c

• facet subject ^op some Person ^c
  
• facet vantage ^op some Agent ^c
  

• Gender Expression ^c
• Gender Identity ^c
• Romantic Orientation ^c
• Sexual Orientation ^c

A reified standing relationship between agents (acquaintance, collaboration, …), able to bear its own time interval, confidence, and source evidence.

• relationship interval ^op
• relationship party ^op

• Acquaintance Relationship ^c
• Professional Relationship ^c

The cryptographic scheme/format of a key (OpenPGP, X.509, SSH, Nostr, …). Modelled as a value, not a key subclass: the set of schemes is open-ended and they carry no distinct key structure here, so a new scheme is a new individual, not a new class.

The reified, time-scoped fact that a party holds rights over a place — ownership, lease, easement, mortgage, usufruct, or another property right. Bridges the locations module to the rights module by referencing RightsStatement. Distinct from JurisdictionTenure (governance/sovereignty) and RegulatoryOverlay (regulation): LandTenure is about property rights. Contested titles coexist as multiple standpoint-indexed instances, never collapsing to a single winner (Principle 9).

• tenure determinacy ^op
• tenure rights ^op
• tenure type ^op
• tenure party ^op
• tenure place ^op

• tenure place ^op some Place ^c
  
• tenure party ^op some Agent ^c
  

A named container of messages within an account — a folder, JMAP mailbox, or Gmail label.

• mailbox name ^dp
• mailbox of account ^op
• mailbox role ^dp

• residence mailbox ^op
• resides in ^op

A reified component of a structured appellation — a given name, a surname, a patronymic, a nobiliary particle, an Arabic nisba, a filename extension. Its kind is the value gmeow:namePartType, its text is gmeow:partText, and gmeow:partOrder records its position WITHOUT implying a Western given-before-family order.

• name part type ^op
• part expansion ^dp
• part order ^dp
• part text ^dp

The social register of a name-usage (formal, intimate, professional, casual). A value vocabulary carried by gmeow:usageRegister on a gmeow:NameUsage.

A frame-relative position and orientation of an object — a 6-DOF pose. A pose consists of a position (spatial coordinates in a reference frame) and an orientation (quaternion, Euler angles, heading/bearing, or a homogeneous transform matrix). Aligns by reference to IEEE 1872-2015 pos:QuantitativePose and structurally to OGC GeoPose 1.0.

• gufo:Object
• Entity ^c

• has pose orientation ^op
• has pose position ^op
• pose frame ^op

Frame-relative coordinates on a biological sequence: a start position, an end position, and a strand orientation, all expressed relative to an explicit reference assembly (Principle 11).

• gufo:Object
• Entity ^c

• in reference assembly ^op
• sequence end ^dp
• sequence start ^dp
• sequence strand ^op

The cryptographic signature scheme used — a value vocabulary (individuals, never subclasses). Distinct from gmeow:KeyScheme: a key scheme names the key format (OpenPGP, X.509), while a signature scheme names the algorithm (RSA-SHA256, Ed25519).

A source from which evidence is drawn: a record, certificate, register, archive entry, or publication.

• content digest ^dp
• source location ^dp
• source modified at ^dp

• cites source ^op
• has source ^op

A named perspective / frame within which claims are held true — a state's official position, a community's usage, an editorial or historiographic point of view. Minted only when the frame needs its own identity and labels; often a bare gmeow:Agent (a polity, an organization) suffices as the value of gmeow:accordingTo instead. Standpoints form a poset under gmeow:sharpens, topped by gmeow:universalStandpoint.

• sharpens ^op
• tenure standpoint ^op

A locus where digital objects reside — a cloud-storage folder, an object-store bucket, a filesystem path, a content-addressed store, or a physical disk. Its medium is a value (gmeow:storageMedium); a physical device may sit at a geographic gmeow:physicalPlace.

• physical place ^op
• storage medium ^op
• storage path ^dp
• storage service ^dp

A reified tagging act — a gufo:Relator mediating a tagged resource, a tag, a tagger, and optionally a scheme and time interval. Bears provenance (gmeow:wasAttributedTo), confidence (gmeow:confidence), and suppression (gmeow:displayable false for retraction without deletion — Principle 10). Structurally the NameUsage/IdentityFacet idiom wearing a different hat, inheriting time-scoping, confidence-weighting, and retract-without-delete for free. The canonical form when the act of tagging must itself be a node; the flat shortcut is gmeow:hasTag.

• tagging interval ^op
• tagging scheme ^op
• tagging tag ^op
• tagging tagged ^op
• tagging tagger ^op

• tagging tagged ^op some Entity ^c
  
• tagging tag ^op some Tag ^c
  
• tagging tagger ^op some Agent ^c
  

The reified trademark right over a mark — binding the mark, its holder, the registration number and the ™/®/status value. Aligned (by reference) to schema:Brand, the WIPO trademark vocabulary and Wikidata.

• registration number ^dp
• trademark status ^op
• trademark holder ^op
• trademark mark ^op

• trademark mark ^op some Mark ^c
  
• trademark holder ^op some Agent ^c
  

A reified, perspectival assertion that one agent (the trustor) trusts another (the trustee), optionally as an introducer to a given depth — the OpenPGP owner-trust notion. Its validity window is carried with gmeow:validFrom/validUntil.

• introducer amount ^dp
• introducer depth ^dp
• trust level ^dp
• trustee ^op
• trustor ^op

• trustor ^op some Agent ^c
  
• trustee ^op some Agent ^c
  

The kind of a cadastral reference (parcel identifier, folio number, title number, lot number, survey plan reference, etc.). A value, not a subclass: the set is open-ended and they share all of CadastralReference's structure, so a new kind is a new individual, not a new class (Principle 9).

The boolean operator of a logical constraint — odrl:and / odrl:or / odrl:xone (exactly one) / odrl:andSequence (ordered conjunction).

A means of reaching an agent: an email address, telephone number, or postal address.

• gufo:Object
• Entity ^c

• has contact point ^op
• tenured contact point ^op

• Telephone Number ^c
• Postal Address ^c
• Email Address ^c

The reified copyright over a work — binding the work, its holder(s), the copyright year and the human-readable notice. Its status (in-copyright, public-domain, …) is a gmeow:copyrightStatus value aligned to RightsStatements.org / PREMIS.

• copyright notice ^dp
• copyright status ^op
• copyright year ^dp
• copyright holder ^op
• copyright work ^op

• copyright work ^op some Information Object ^c
  
• copyright holder ^op some Agent ^c
  

A reified, leveled proficiency of an agent in a language, in a particular skill modality — the gufo:Relator binding {agent} × {language} × {skill modality} × {level on a scale}, mirroring names' gmeow:NameUsage. Mint one per (agent, language, modality) so 'native overall' and 'B2 writing' coexist. The base gmeow:knowsLanguage relation states that an agent knows a language; this relator adds the level and the skill.

• proficiency agent ^op
• proficiency interval ^op
• proficiency language ^op
• proficiency level ^op
• proficiency modality ^op
• proficiency scale ^op

The finality state of a ledger transaction or block — a value vocabulary (individuals, never subclasses).

A subjective or internal reference frame in which standpoint-indexed values are expressed — e.g. a thermal comfort scale, an olfactory quality space, a subjective loudness frame, an affective valence/arousal space (Russell circumplex), a conceptual geometry (Gärdenfors), a cognitive map (egocentric or allocentric), or an imagined space (memory palace, dream). A MentalReferenceFrame is a ReferenceFrame whose realm is perceptual or psychological and whose axes describe qualitative or semi-quantitative dimensions of human, animal, or AI experience. Requires a host (the perceiver, thinker, or dreamer); the frame deactivates when its host ceases to exist. Distinct from measurement frames: two hosts may map the same external stimulus to different mental-frame coordinates (Principle 11).

A canon, continuity, or narrative realm that serves as a reference frame for in-universe facts (locations, dates, events) and functionally as the standpoint under which in-universe claims hold true. The Harry Potter canon, the Marvel Multiverse (Earth-616, MCU, Ultimate), and the Star Wars Legends/Canon split are all narrative reference frames. Ordinary GMEOW entities (Person, Place, Organization, Event) may carry claims according to this frame; cross-continuity variants are linked by counterpartOf, never merged.

• has narrative frame relation ^op
• relates to frame ^op

• narrative frame link source ^op
• narrative frame link target ^op
• relates to frame ^op
• source for ^op

A reified parent-child relationship, typed by its nature (biological, adoptive, step, or foster).

• relationship child ^op
• relationship parent ^op

• relationship parent ^op some Person ^c
  
• relationship child ^op some Person ^c
  

• Adoptive Parent-Child ^c
• Biological Parent-Child ^c
• Foster Parent-Child ^c
• Step Parent-Child ^c

A framework for rating language proficiency (CEFR, ILR, ACTFL, self-reported). A value carried by gmeow:proficiencyScale and gmeow:levelScale.

• level scale ^op
• proficiency scale ^op

One hop in a message's delivery path, recorded by a Received header: a relaying server, the host it received from, a server timestamp, and the protocol used.

• hop ordinal ^dp
• relay at ^dp
• relay by ^dp
• relay from ^dp
• relay protocol ^dp

A privacy-sensitivity classification for a value — an open, ordered value vocabulary (public ≺ internal ≺ confidential ≺ restricted ≺ sensitive personal). The explicit facet that drives disclosure-control decisions: a value marked sensitive personal may be coarsened or withheld at projection time under a consent guard. Orthogonal to determinacy, confidence, and granularity (Principle 9). The sensitivity-to-coarsen trigger is a solver concern (P12).

The belief value a standpoint assigns a proposition — a closed value vocabulary spanning the Standpoint-Logic □/◊ and the CRMinf belief value (true/false/probable/possible): gmeow:unequivocal, gmeow:probable, gmeow:conceivable, gmeow:refuted. Absence of a value is read as unequivocal.

• claim modality ^op
• standpoint modality ^ap

A time-ordered sequence of observations or samples produced by a sensor or platform over a time interval. The ordering of samples is implicit via their individual timestamps, not asserted as a list structure (Principle 12). A stream is the canonical source from which a continuous trajectory may be derived by the solver layer.

• gufo:Object
• Entity ^c

• stream interval ^op
• stream platform ^op
• stream sample ^op
• stream sensor ^op
• stream of ^op

The granularity to which an event's time is known — day, month, year, decade, or circa. A value carried by gmeow:temporalPrecision; pairs with gmeow:earliestStart / gmeow:latestEnd to express a fuzzy date without abandoning DL-clean xsd:dateTime base triples.

The registration status of a trademark — a VALUE: unregistered (™), registered (®), pending, expired, or cancelled. Open vocabulary.

A reified, standpoint-scoped claim that a concrete entity belongs to a version set with a particular role and/or scale — an observation in the universal claim stack (#69). Mediates between an entity (versionMember), a version set (versionSet), and an optional role/scale asserted by an authority (membershipAuthority / vantage). Mint one VersionMembership per (entity, versionSet, role, authority) tuple; when a role changes over time, close the old membership's interval or mint a fresh one — never overwrite (Principle 10). Inherits confidence, displayable, and temporal scope from Observation.

• gufo:Relator
• Observation ^c

• membership interval ^op
• version role ^op
• version scale ^op
• membership authority ^op
• version member ^op
• version set ^op

• version member ^op some Entity ^c
  
• version set ^op some Version Set ^c
  
• membership authority ^op some Agent ^c
  

A first-class system for visually or tactilely representing language — a script: Latin, Han (kanji), Hiragana, Katakana, Arabic, Braille, or a bespoke conlang/AI script. Carries gmeow:scriptCode (ISO 15924 when one exists, else a bespoke identifier), a type (gmeow:writingSystemType) and a direction (gmeow:textDirection). Bound to the languages that use it — co-equally and simultaneously — through gmeow:WritingSystemUsage; bespoke and non-linear scripts (Ithkuil) are first-class.

• script code ^dp
• text direction ^op
• writing system type ^op

• usage writing system ^op
• uses writing system ^op

The spatial extent of a place — a point, line, or polygon — carrying a Well-Known Text (WKT) serialization for shapes richer than a single point (the GeoSPARQL geo:Geometry superset).

• gufo:Object
• Entity ^c

• as GeoJSON ^dp
• as WKT ^dp
• geometry determinacy ^op
• geometry type ^op

• has centroid ^op
• has geometry ^op
• geometry result ^op

The structural kind of a geometry (point, line, polygon, multipoint, multilinestring, multipolygon). A value vocabulary (individuals, never subclasses) aligned by reference to GeoSPARQL simple-features (sf:Point, sf:LineString, sf:Polygon, etc.).

The domain of an honorific (academic, clerical, noble, military, judicial, social).

The family of a licence — public-domain, Creative Commons, permissive, copyleft, proprietary, or dual. An OPEN value vocabulary; the ontology-side reflection of the config.py license classification, not a duplicate of it.

An observation that assigns a quantitative or qualitative value to a feature of interest, typically carrying a unit, uncertainty, and determinacy model. The parent of temporal dating, spatial coordinate assignment, and scalar quantity measurements.

• Capacity ^c
• Occupancy ^c
• Proximity Measurement ^c
• Utilization ^c
• Spatial Aggregation ^c
• Spatial Measurement ^c
• Temporal Measurement ^c

A flag/keyword applied to a message (IMAP flag or JMAP keyword) such as seen, flagged, answered, draft, forwarded, or junk.

A closed descriptor schema for an open-but-structured facet. A Profile self-describes the properties that constitute the facet and the open value vocabularies from which their values are drawn, enabling extensibility-by-construction.

• gufo:Object
• Information Object ^c

• profile applies to ^op
• profile descriptor ^ap
• profile open value ^op

A traversable path through a graph of connected entities — a named, typed sequence of linked nodes with a defined start and end. Models transport lines, network paths, citation chains, social paths, and dependency chains. The actual path geometry, ordering, and cost are computed by the solver layer (Principle 12), not asserted as triples.

• has route segment ^op
• route end ^op
• route kind ^op
• route start ^op
• route via ^op

• has route ^op
• has route segment ^op