Triple

T11368963
Position Surface form Disambiguated ID Type / Status
Subject MBTA Orange Line Back Bay branch E269290 entity
Predicate hasStation P35 FINISHED
Object Massachusetts Avenue station E196323 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: Massachusetts Avenue station | Statement: [MBTA Orange Line Back Bay branch, hasStation, Massachusetts Avenue station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Massachusetts Avenue station
Context triple: [MBTA Orange Line Back Bay branch, hasStation, Massachusetts Avenue station]
  • A. Massachusetts Avenue station chosen
    Massachusetts Avenue station is an underground rapid transit stop in Boston, Massachusetts, located in the South End and served by the MBTA's Orange Line.
  • B. Harvard Avenue station
    Harvard Avenue station is a surface light rail stop in Boston’s Allston neighborhood serving the MBTA Green Line B branch.
  • C. Coolidge Corner station
    Coolidge Corner station is a light rail stop on the MBTA Green Line in Brookline, Massachusetts, serving the busy commercial and residential Coolidge Corner neighborhood.
  • D. Boylston station
    Boylston station is a historic underground light rail stop in downtown Boston that serves the MBTA Green Line.
  • E. Uphams Corner station
    Uphams Corner station is a Massachusetts Bay Transportation Authority commuter rail stop on the Fairmount Line located in the Uphams Corner neighborhood of Dorchester, Boston.
  • 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_69d6aacca1048190b39dbbc2174616fa completed April 8, 2026, 7:21 p.m.
NER Named-entity recognition batch_69d7ea89e1148190b0ca29db9d7e2cbd completed April 9, 2026, 6:06 p.m.
NED1 Entity disambiguation (via context triple) batch_69e5567b67f88190b0412e30b346d36d completed April 19, 2026, 10:26 p.m.
Created at: April 8, 2026, 9:33 p.m.