Triple

T8765316
Position Surface form Disambiguated ID Type / Status
Subject MBTA Green Line tunnels E208324 entity
Predicate includesSection P1393 FINISHED
Object Tremont Street subway E163466 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: Tremont Street subway | Statement: [MBTA Green Line tunnels, includesSection, Tremont Street subway]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Tremont Street subway
Context triple: [MBTA Green Line tunnels, includesSection, Tremont Street subway]
  • A. Tremont Street subway chosen
    The Tremont Street subway is the historic underground streetcar tunnel in downtown Boston that forms part of the MBTA Green Line and is recognized as the oldest subway tunnel in North America.
  • B. Degraves Street subway
    Degraves Street subway is an underground pedestrian passage in central Melbourne that links Flinders Street Station to Degraves Street and nearby laneways.
  • C. Broad Street (BMT Nassau Street Line)
    Broad Street is a New York City Subway station in Lower Manhattan serving the BMT Nassau Street Line, primarily used by J and Z trains.
  • D. Dyckman Street (A line)
    Dyckman Street (A line) is a New York City Subway station on the IND Eighth Avenue Line serving the A train in the Inwood neighborhood of Upper Manhattan.
  • E. Pennsylvania Avenue (IRT New Lots Line)
    Pennsylvania Avenue is a local New York City Subway station on the IRT New Lots Line in Brownsville, Brooklyn, served by the 3 train.
  • 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_69ca835df7e08190ac875664cca8f9ca completed March 30, 2026, 2:06 p.m.
NER Named-entity recognition batch_69cc5ee850b88190a0294bcbe4045aa3 completed March 31, 2026, 11:55 p.m.
NED1 Entity disambiguation (via context triple) batch_69cf519f029081908ad0ae79f35b3e9d completed April 3, 2026, 5:35 a.m.
Created at: March 30, 2026, 6:40 p.m.