Triple

T8253579
Position Surface form Disambiguated ID Type / Status
Subject Embarcadero Station (BART/Muni Metro nearby terminus area) E193014 entity
Predicate isLocatedOnCorridor P5520 FINISHED
Object Market Street subway E76841 NE FINISHED

How this triple was built (3 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: Market Street subway | Statement: [Embarcadero Station (BART/Muni Metro nearby terminus area), isLocatedOnCorridor, Market Street subway]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Market Street subway
Context triple: [Embarcadero Station (BART/Muni Metro nearby terminus area), isLocatedOnCorridor, Market Street subway]
  • A. Market Street subway chosen
    The Market Street subway is a major underground transit corridor in San Francisco that carries both BART and Muni Metro trains beneath Market Street through the city’s downtown.
  • B. Dearborn Street subway
    The Dearborn Street subway is an underground rapid transit tunnel in downtown Chicago that carries Chicago Transit Authority trains beneath Dearborn Street.
  • C. Archer Avenue Subway
    The Archer Avenue Subway is a New York City Subway extension in Queens that opened in the late 1980s to replace portions of the demolished elevated Jamaica Line and improve transit access to the Jamaica Center area.
  • D. Sheppard subway
    Sheppard subway is a Toronto Transit Commission rapid transit line in North York that runs east–west along Sheppard Avenue.
  • E. Castro Street station
    Castro Street station is an underground Muni Metro light rail stop in San Francisco’s Castro District, serving as a key transit point along Market Street.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: isLocatedOnCorridor
Context triple: [Embarcadero Station (BART/Muni Metro nearby terminus area), isLocatedOnCorridor, Market Street subway]
  • A. hasCorridor chosen
    Indicates that one entity includes, is connected by, or provides access through a corridor to another entity.
  • B. hasServiceOnCorridor
    Indicates that a service operates along, or is provided on, a specific corridor or route.
  • C. isMostHeavilyTraveledCorridorIn
    Indicates that a particular route or corridor experiences the highest volume of travel or traffic within a specified area or region.
  • D. corridorFunction
    Indicates that one entity serves as a corridor or passageway functionally connecting or providing access between other spaces or areas.
  • E. corridorOrientation
    Indicates the directional alignment or bearing of a corridor relative to a reference frame or coordinate system.
  • F. None of above.

Provenance (4 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_69ca82dfad9c8190b8cd18fb89f50f40 completed March 30, 2026, 2:04 p.m.
NER Named-entity recognition batch_69cb78cbc7cc81909931440e95d6e691 completed March 31, 2026, 7:33 a.m.
NED1 Entity disambiguation (via context triple) batch_69cd354a412c8190963605d177d94a17 completed April 1, 2026, 3:10 p.m.
PD Predicate disambiguation batch_69cb36b6d5548190b665a6cce14c69f7 completed March 31, 2026, 2:51 a.m.
Created at: March 30, 2026, 5:48 p.m.