Triple

T1940482
Position Surface form Disambiguated ID Type / Status
Subject Stamford, Connecticut E41539 entity
Predicate servedByRailLine P1293 FINISHED
Object Metro-North Railroad New Haven Line E139806 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 New Haven Line | Statement: [Stamford, Connecticut, 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: [Stamford, Connecticut, servedByRailLine, Metro-North Railroad New Haven Line]
  • A. 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.
  • B. 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.
  • C. 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.
  • D. New York, New Haven and Hartford Railroad
    The New York, New Haven and Hartford Railroad was a major railroad in the northeastern United States that operated extensive passenger and freight services across New England and into New York City during the late 19th and early 20th centuries.
  • E. Metro-North Railroad
    Metro-North Railroad is a major commuter rail service operating in the New York metropolitan area, primarily connecting New York City with its northern suburbs in New York State and Connecticut.
  • 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_69a88649b24c819080047f26b6db2ded completed March 4, 2026, 7:21 p.m.
NER Named-entity recognition batch_69abb2fb21fc8190929ea4a87ef4402e completed March 7, 2026, 5:09 a.m.
NED1 Entity disambiguation (via context triple) batch_69adfbb7616881908bfc82997538ca08 completed March 8, 2026, 10:44 p.m.
Created at: March 4, 2026, 7:36 p.m.