Triple

T20213931
Position Surface form Disambiguated ID Type / Status
Subject Arlington–Downtown–Largo trunk E493562 entity
Predicate hasOwner P347 FINISHED
Object Washington Metropolitan Area Transit Authority — 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: Washington Metropolitan Area Transit Authority | Statement: [Arlington–Downtown–Largo trunk, hasOwner, Washington Metropolitan Area Transit Authority]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Washington Metropolitan Area Transit Authority
Context triple: [Arlington–Downtown–Largo trunk, hasOwner, Washington Metropolitan Area Transit Authority]
  • A. Washington Metropolitan Area Transit Authority chosen
    The Washington Metropolitan Area Transit Authority is the agency that manages public transportation services, including Metrorail and Metrobus, in the Washington, D.C. metropolitan region.
  • B. Maryland Transit Administration
    The Maryland Transit Administration is the state agency responsible for operating and overseeing public transportation services in Maryland, including bus, rail, and commuter transit systems.
  • C. Washington Metrorail Safety Commission
    The Washington Metrorail Safety Commission is an independent oversight agency responsible for monitoring, investigating, and enforcing safety practices across the Washington, D.C. region’s Metrorail transit system.
  • D. Capital Area Transit
    Capital Area Transit was the former name of Raleigh, North Carolina’s primary public bus system, now known as GoRaleigh.
  • E. Richmond Metropolitan Transportation Authority
    The Richmond Metropolitan Transportation Authority is a regional public agency that develops, operates, and maintains toll roads, bridges, and parking facilities in the Richmond, Virginia area.
  • 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_69da6269614c8190bb40475d9d477358 completed April 11, 2026, 3:02 p.m.
NER Named-entity recognition batch_69e66ed8101081908e53a8bde48624b1 completed April 20, 2026, 6:22 p.m.
Created at: April 11, 2026, 11:38 p.m.