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Remove schema:subjectOf edges from KG extraction (#695)

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The subjectOf triples were redundant with the subgraph provenance model
introduced in e8407b34. Entity-to-source lineage can be traced via
tg:contains -> subgraph -> prov:wasDerivedFrom -> chunk, making the
direct subjectOf edges unnecessary metadata polluting the knowledge graph.

Removed from all three extractors (agent, definitions, relationships),
cleaned up the SUBJECT_OF constant and vocabulary label, and updated
tests accordingly.
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cybermaggedon 2026-03-13 12:11:21 +00:00 • committed by GitHub
parent 64e3f6bd0d
commit e6623fc915
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10 changed files with 9 additions and 88 deletions
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6
tests/integration/test_agent_kg_extraction_integration.py
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@ -14,7 +14,7 @@ from unittest.mock import AsyncMock, MagicMock, patch
from trustgraph.extract.kg.agent.extract import Processor as AgentKgExtractor
from trustgraph.schema import Chunk, Triple, Triples, Metadata, Term, Error, IRI, LITERAL
from trustgraph.schema import EntityContext, EntityContexts, AgentRequest, AgentResponse
from trustgraph.rdf import TRUSTGRAPH_ENTITIES, DEFINITION, RDF_LABEL, SUBJECT_OF
from trustgraph.rdf import TRUSTGRAPH_ENTITIES, DEFINITION, RDF_LABEL
from trustgraph.template.prompt_manager import PromptManager
@ -174,10 +174,6 @@ class TestAgentKgExtractionIntegration:
label_triples = [t for t in sent_triples.triples if t.p.iri == RDF_LABEL]
assert len(label_triples) >= 2 # Should have labels for entities
# Check subject-of relationships
subject_of_triples = [t for t in sent_triples.triples if t.p.iri == SUBJECT_OF]
assert len(subject_of_triples) >= 2 # Entities should be linked to document
# Verify entity contexts were emitted
entity_contexts_publisher = mock_flow_context("entity-contexts")
entity_contexts_publisher.send.assert_called_once()