Triple

T11347665
Position Surface form Disambiguated ID Type / Status
Subject MBTA commuter rail terminals E268761 entity
Predicate hasTerminal P182 FINISHED
Object Back Bay station E104961 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: Back Bay station | Statement: [MBTA commuter rail terminals, hasTerminal, Back Bay station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Back Bay station
Context triple: [MBTA commuter rail terminals, hasTerminal, Back Bay station]
  • A. Back Bay station chosen
    Back Bay station is a major transportation hub in Boston, Massachusetts, serving MBTA commuter rail, Amtrak, and subway lines in the Back Bay neighborhood.
  • B. North Station
    North Station is a major transportation hub in Boston, Massachusetts, serving as a key commuter rail, subway, and intercity bus terminal integrated with the TD Garden arena.
  • C. North Station
    North Station is a passenger stop on Detroit Metropolitan Airport’s McNamara Terminal ExpressTram, serving travelers moving along the terminal concourse.
  • D. Broadway–South Boston station
    Broadway–South Boston station is a former name for what is now known as Broadway station, a rapid transit stop on the MBTA Red Line in South Boston, Massachusetts.
  • E. Medford station
    Medford station is a Long Island Rail Road commuter rail stop located in Medford, New York, serving passengers on the Ronkonkoma Branch.
  • 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_69d6aacbe18081909e5fadb50082dd96 completed April 8, 2026, 7:21 p.m.
NER Named-entity recognition batch_69d7ea214bb88190bb66f7fd3ef73081 completed April 9, 2026, 6:04 p.m.
NED1 Entity disambiguation (via context triple) batch_69e58b8d5f5c8190a80a52f2063bb5b0 completed April 20, 2026, 2:12 a.m.
Created at: April 8, 2026, 9:33 p.m.