Triple
T781565
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | MBTA Green Line D branch |
E16506
|
entity |
| Predicate | servesStation |
P839
|
FINISHED |
| Object | Fenway station |
E54933
|
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: Fenway station | Statement: [MBTA Green Line D branch, servesStation, Fenway station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Fenway station Context triple: [MBTA Green Line D branch, servesStation, Fenway station]
-
A.
Fenway station
chosen
Fenway station is a light rail stop on Boston’s MBTA Green Line serving the Fenway–Kenmore area near Fenway Park.
-
B.
Boylston station
Boylston station is a historic underground light rail stop in downtown Boston that serves the MBTA Green Line.
-
C.
Wellington Station (MBTA)
Wellington Station (MBTA) is an Orange Line rapid transit station in Medford, Massachusetts, serving as a key park-and-ride and bus transfer hub just north of downtown Boston.
-
D.
Back Bay station
Back Bay station is a major transportation hub in Boston, Massachusetts, serving MBTA commuter rail, Amtrak, and subway lines in the Back Bay neighborhood.
-
E.
Malden Center station
Malden Center station is a major transit hub in Malden, Massachusetts, serving both MBTA Orange Line subway and commuter rail services.
- 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_69a4936ad1fc81908f190208059ccf78 |
completed | March 1, 2026, 7:28 p.m. |
| NER | Named-entity recognition | batch_69a4a751ea3481908a622d5255249883 |
completed | March 1, 2026, 8:53 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69acc5f8bc2081908f7d2435ce43fdc4 |
completed | March 8, 2026, 12:42 a.m. |
Created at: March 1, 2026, 7:37 p.m.