Entity Existence

• CURIE: gmeow:EntityExistence
• IRI: https://blackcatinformatics.ca/gmeow/EntityExistence
• Category: class
• Defined by: gmeow:slices/lifecycle
• Box roles: TBox role (What is this?)

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.

Structure

Subclass of: gmeow:TimeScopedRelation

Practical Pattern

Use gmeow:EntityExistence as a specialized kind of gmeow:TimeScopedRelation. Add statement metadata or a standpoint when the assertion needs provenance, confidence, or vantage.

Common Companion Terms

gmeow:TimeScopedRelation

Usage Advice

Use when

• Use the reified form when the existence claim itself must carry standpoint, confidence, evidence, or contestation — two sources disagreeing on when a place ceased to exist, or a dated founding needing a citation.

Avoid when

• Avoid it for the ordinary case — flat gmeow:hasCreationEvent / gmeow:hasDestructionEvent / gmeow:existenceInterval on the entity carry it more cheaply; promote to this relator only when the claim needs to be argued about.

How to use

• Mint a gmeow:EntityExistence, attach the subject with gmeow:existenceEntity, the bounding events with gmeow:existenceCreationEvent/existenceDestructionEvent, the period via the inherited gmeow:duringInterval, and standpoint/evidence via the statement layer.

Examples

• ex:troyExistence a gmeow:EntityExistence; gmeow:existenceEntity ex:troy; gmeow:existenceDestructionEvent ex:sack; gmeow:accordingTo ex:homer.