Triple

T8439214
Position Surface form Disambiguated ID Type / Status
Subject Fairfield Metro-North Railroad station E199307 entity
Predicate railCorridor P848 FINISHED
Object Northeast rail corridor (commuter segment) E2775 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: Northeast rail corridor (commuter segment) | Statement: [Fairfield Metro-North Railroad station, railCorridor, Northeast rail corridor (commuter segment)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Northeast rail corridor (commuter segment)
Context triple: [Fairfield Metro-North Railroad station, railCorridor, Northeast rail corridor (commuter segment)]
  • A. Amtrak Empire Corridor
    The Amtrak Empire Corridor is a major passenger rail route in New York State that connects New York City with Albany and other upstate cities along the Hudson River and beyond.
  • B. Peninsula rail corridor
    The Peninsula rail corridor is the major rail line running through California’s San Francisco Peninsula, carrying both commuter and intercity trains between San Francisco and the South Bay.
  • C. Boston–Albany rail corridor
    The Boston–Albany rail corridor is a key east–west passenger and freight rail route linking Boston, Massachusetts with Albany, New York across the heart of New England.
  • D. New Jersey–Manhattan commuter corridor
    The New Jersey–Manhattan commuter corridor is a heavily traveled transit artery linking New Jersey suburbs with Manhattan’s central business districts via multiple rail and transit routes under and across the Hudson River.
  • E. Northeast Corridor chosen
    The Northeast Corridor is the busiest passenger rail line in the United States, running primarily Amtrak and commuter trains along the urbanized spine of the East Coast between major cities such as Washington, D.C., Philadelphia, New York City, and Boston.
  • 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_69ca8314cd6c8190a6b8c2a1096e18f3 completed March 30, 2026, 2:05 p.m.
NER Named-entity recognition batch_69cbe135657c81908ed8156fbfbef6ec completed March 31, 2026, 2:59 p.m.
NED1 Entity disambiguation (via context triple) batch_69ce1d87403c8190b979af4979e43517 completed April 2, 2026, 7:40 a.m.
Created at: March 30, 2026, 6:08 p.m.