Triple

T15082673
Position Surface form Disambiguated ID Type / Status
Subject Chappaqua station E360188 entity
Predicate railwayService P848 FINISHED
Object Metro-North Railroad Harlem Line local service E46626 NE FINISHED

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: Metro-North Railroad Harlem Line local service | Statement: [Chappaqua station, railwayService, Metro-North Railroad Harlem Line local service]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Metro-North Railroad Harlem Line local service
Context triple: [Chappaqua station, railwayService, Metro-North Railroad Harlem Line local service]
  • A. Metro-North Railroad Hudson Line
    The Metro-North Railroad Hudson Line is a major commuter rail route running along the east bank of the Hudson River, connecting New York City with communities throughout the Hudson Valley.
  • B. Harlem Line of the Metro-North Railroad chosen
    The Harlem Line of the Metro-North Railroad is a commuter rail line running from New York City north through Westchester, Putnam, and Dutchess counties, providing key suburban and exurban service into Manhattan.
  • C. Metro-North Railroad Port Jervis Line
    The Metro-North Railroad Port Jervis Line is a commuter rail line in the New York metropolitan area that provides long-distance service between Port Jervis and Hoboken, New Jersey, with connections to New York City.
  • D. MTA LIRR M9
    The MTA LIRR M9 is a modern electric multiple-unit railcar fleet used by the Long Island Rail Road for high-capacity, commuter rail service.
  • E. LIRR Atlantic Terminal service
    LIRR Atlantic Terminal service is a Long Island Rail Road commuter rail service that operates between Atlantic Terminal in Brooklyn and points on the railroad’s network, providing a key transit link into downtown Brooklyn.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (3 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_69d85a035aa88190b52a139d3a1b7b6d completed April 10, 2026, 2:01 a.m.
NER Named-entity recognition batch_69e0027450a48190a84588b6aaf84ebf completed April 15, 2026, 9:26 p.m.
NED1 Entity disambiguation (via context triple) batch_69feae179a24819097019976707c93e1 completed May 9, 2026, 3:46 a.m.
Created at: April 10, 2026, 3:03 a.m.