Triple
T1501255
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Ayer, Massachusetts |
E33798
|
entity |
| Predicate | hasRailStation |
P726
|
FINISHED |
| Object | Ayer MBTA station |
E9400
|
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: Ayer MBTA station | Statement: [Ayer, Massachusetts, hasRailStation, Ayer MBTA station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Ayer MBTA station Context triple: [Ayer, Massachusetts, hasRailStation, Ayer MBTA station]
-
A.
MBTA Green Line at Government Center
The MBTA Green Line at Government Center is a major light rail subway station in downtown Boston that serves as a key transfer point and access hub for nearby civic and historic landmarks.
-
B.
MBTA Silver Hill station
MBTA Silver Hill station is a small commuter rail stop on the Massachusetts Bay Transportation Authority’s Fitchburg Line serving the Silver Hill neighborhood of Weston, Massachusetts.
-
C.
Ayer station
chosen
Ayer station is a commuter rail stop in Ayer, Massachusetts that serves as a local transit hub on the MBTA Fitchburg Line.
-
D.
Wonderland MBTA station
Wonderland MBTA station is a rapid transit station on the MBTA Blue Line in Revere, Massachusetts, serving as the line’s northern terminus close to Revere Beach.
-
E.
Green Line at North Station
The Green Line at North Station is a major MBTA light rail stop in Boston that serves as a key transfer point between the Green Line trolleys and regional 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_69a885f352a4819099b24ff15489dede |
completed | March 4, 2026, 7:20 p.m. |
| NER | Named-entity recognition | batch_69a8872e41848190b35b37f32aef784f |
completed | March 4, 2026, 7:25 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ad1cb3c5908190b3d5fe7a4dcaa234 |
completed | March 8, 2026, 6:52 a.m. |
Created at: March 4, 2026, 7:24 p.m.