Triple

T20421083
Position Surface form Disambiguated ID Type / Status
Subject Fairfield metropolitan area E500850 entity
Predicate servedByRailLine P1293 FINISHED
Object Metro-North Railroad New Haven Line — 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: Metro-North Railroad New Haven Line | Statement: [Fairfield metropolitan area, servedByRailLine, Metro-North Railroad New Haven Line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Metro-North Railroad New Haven Line
Context triple: [Fairfield metropolitan area, servedByRailLine, Metro-North Railroad New Haven Line]
  • A. Metro-North Railroad New Canaan Branch
    The Metro-North Railroad New Canaan Branch is a commuter rail line in southwestern Connecticut that provides service between New Canaan and the New Haven Line main route into the New York City metropolitan area.
  • B. New Haven Line chosen
    The New Haven Line is a major commuter rail route in the northeastern United States that connects New York City with New Haven, Connecticut, serving numerous communities along the Long Island Sound corridor.
  • C. Metro-North Railroad Waterbury Branch
    The Metro-North Railroad Waterbury Branch is a commuter rail line in Connecticut that provides service between Waterbury and the New Haven Line, connecting the Naugatuck Valley to the broader Metro-North network.
  • D. 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.
  • E. New Haven–Springfield Line
    The New Haven–Springfield Line is a key passenger rail corridor in the northeastern United States connecting New Haven, Connecticut, with Springfield, Massachusetts, and serving both intercity and commuter rail services.
  • 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_69e0b4aa68fc8190b1a14c55575ef04a completed April 16, 2026, 10:06 a.m.
NER Named-entity recognition batch_69e67ba479008190bf6d31ee79f3a401 completed April 20, 2026, 7:16 p.m.
Created at: April 16, 2026, 11:30 a.m.