Triple

T21095492
Position Surface form Disambiguated ID Type / Status
Subject Sligo Creek E519754 entity
Predicate mouthOf P1008 FINISHED
Object Northwest Branch Anacostia River — NE NERFINISHED

How this triple was built (2 steps)

Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.

NER Named-entity recognition gpt-5-mini
Instruction
Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).
Input
Phrase: Northwest Branch Anacostia River | Statement: [Sligo Creek, mouthOf, Northwest Branch Anacostia River]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Northwest Branch Anacostia River
Context triple: [Sligo Creek, mouthOf, Northwest Branch Anacostia River]
  • A. Northwest Branch Anacostia River chosen
    The Northwest Branch Anacostia River is a major tributary of the Anacostia River in Maryland and Washington, D.C., flowing through parkland and suburban communities and supporting popular recreational trails along its banks.
  • B. Northeast Branch Anacostia River
    The Northeast Branch Anacostia River is a major tributary of the Anacostia River in Maryland, flowing through suburban communities and parklands before joining the river system that leads to Washington, D.C.
  • C. Anacostia River
    The Anacostia River is a tidal river in the Washington, D.C. area known for its historical significance, urban setting, and long-running environmental restoration efforts.
  • D. Cabin John Creek
    Cabin John Creek is a stream in Montgomery County, Maryland, that flows through suburban parkland before emptying into the Potomac River.
  • E. Patapsco River
    The Patapsco River is a major waterway in central Maryland that flows into the Chesapeake Bay and forms the harbor of Baltimore.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (2 batches)

The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.

Step Stage Batch ID Status When
creating Elicitation batch_69e0b508d8dc81909be940dafe36c8f7 completed April 16, 2026, 10:08 a.m.
NER Named-entity recognition batch_69e71b5845f88190a16f3df157f0906c completed April 21, 2026, 6:38 a.m.
Created at: April 16, 2026, 2:52 p.m.