Triple

T2592855
Position Surface form Disambiguated ID Type / Status
Subject Peninsula rail corridor E58161 entity
Predicate hasStation P35 FINISHED
Object San Francisco 4th and King Street Station E22369 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: San Francisco 4th and King Street Station | Statement: [Peninsula rail corridor, hasStation, San Francisco 4th and King Street Station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: San Francisco 4th and King Street Station
Context triple: [Peninsula rail corridor, hasStation, San Francisco 4th and King Street Station]
  • A. San Francisco 4th and King Street station chosen
    San Francisco 4th and King Street station is a major commuter rail terminal in San Francisco that serves as the northern terminus for Caltrain services between the city and the Peninsula/Silicon Valley.
  • B. San Francisco 3rd and Townsend Street station
    San Francisco 3rd and Townsend Street station was a former Caltrain commuter rail terminal in San Francisco that served as the line’s city terminus before operations moved to the nearby 4th and King Street station.
  • C. BART Embarcadero Station
    BART Embarcadero Station is a major underground transit hub in downtown San Francisco serving Bay Area Rapid Transit trains and connecting with Muni Metro light rail lines.
  • D. Broadway Caltrain station
    Broadway Caltrain station is a commuter rail stop in Burlingame, California, serving passengers on Caltrain’s Peninsula Corridor between San Francisco and San Jose.
  • E. Union Square/Market Street station
    Union Square/Market Street station is an underground San Francisco Muni Metro station serving the Central Subway near the Union Square and Market Street area.
  • 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_69ab4ac019c8819094add11c46706e32 completed March 6, 2026, 9:44 p.m.
NER Named-entity recognition batch_69abd426e2d4819081a07920b4d2a1cc completed March 7, 2026, 7:30 a.m.
NED1 Entity disambiguation (via context triple) batch_69af83bee4908190b5e446ddbf4e8889 completed March 10, 2026, 2:36 a.m.
Created at: March 6, 2026, 9:49 p.m.