Triple

T21756402
Position Surface form Disambiguated ID Type / Status
Subject Long Island Rail Road Rockaway Beach Branch right-of-way E537051 entity
Predicate electrification P392 FINISHED
Object third rail (historical, LIRR) — 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: third rail (historical, LIRR) | Statement: [Long Island Rail Road Rockaway Beach Branch right-of-way, electrification, third rail (historical, LIRR)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: third rail (historical, LIRR)
Context triple: [Long Island Rail Road Rockaway Beach Branch right-of-way, electrification, third rail (historical, LIRR)]
  • A. third rail (New York City area) chosen
    The third rail in the New York City area is a side-contact electrified rail system used to supply power to commuter and intercity trains, notably on routes such as those of the Amtrak Empire Corridor and regional transit lines.
  • B. LIRR C3 coaches
    LIRR C3 coaches are bi-level passenger railcars used by the Long Island Rail Road to provide high-capacity commuter service, particularly on routes requiring diesel locomotives.
  • C. LIRR Main Line trains
    LIRR Main Line trains are Long Island Rail Road commuter rail services that operate along the railroad’s primary corridor between New York City and central/eastern Long Island.
  • D. Long Island Rail Road rolling stock
    Long Island Rail Road rolling stock comprises the various passenger train cars and electric multiple units used to operate commuter rail services across Long Island and into New York City.
  • E. Long Island Rail Road diesel territory
    Long Island Rail Road diesel territory refers to the non-electrified portions of the LIRR network where trains are powered by diesel locomotives rather than third-rail electric power.
  • 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_69e0c46eab808190b848242d63a17c47 completed April 16, 2026, 11:13 a.m.
NER Named-entity recognition batch_69f01d8ea04c8190a8c4fa43b3f23935 completed April 28, 2026, 2:38 a.m.
Created at: April 16, 2026, 6:50 p.m.