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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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trustgraph-base/trustgraph/provenance/namespaces.py
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@ -30,7 +30,6 @@ RDFS_LABEL = RDFS + "label"
# Schema.org namespace
SCHEMA = "https://schema.org/"
SCHEMA_SUBJECT_OF = SCHEMA + "subjectOf"
SCHEMA_DIGITAL_DOCUMENT = SCHEMA + "DigitalDocument"
SCHEMA_DESCRIPTION = SCHEMA + "description"
SCHEMA_KEYWORDS = SCHEMA + "keywords"