Triple
T10082140
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Red Line Alewife branch |
E213926
|
entity |
| Predicate | hasStation |
P35
|
FINISHED |
| Object | Charles/MGH station |
E523551
|
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: Charles/MGH station | Statement: [Red Line Alewife branch, hasStation, Charles/MGH station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Charles/MGH station Context triple: [Red Line Alewife branch, hasStation, Charles/MGH station]
-
A.
Charles/MGH station
Charles/MGH station is an elevated Massachusetts Bay Transportation Authority subway stop in Boston serving the Red Line near the Charles River and Massachusetts General Hospital.
-
B.
Tufts Medical Center station
Tufts Medical Center station is an underground rapid transit stop in Boston, Massachusetts, located in the Chinatown/South Cove area and serving the MBTA Orange Line.
-
C.
MBTA Charles/MGH station
chosen
MBTA Charles/MGH station is a Red Line subway stop in Boston serving Massachusetts General Hospital and the Charles River area.
-
D.
Savin Hill station
Savin Hill station is a rapid transit stop on the Massachusetts Bay Transportation Authority's Red Line serving the Savin Hill neighborhood of Dorchester in Boston, Massachusetts.
-
E.
Copley station
Copley station is a major underground MBTA subway stop in Boston’s Back Bay neighborhood, serving multiple branches of the Green Line and providing access to nearby landmarks like Copley Square and the Boston Public Library.
- 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_69ca839bf730819086900c323c9b8c95 |
completed | March 30, 2026, 2:07 p.m. |
| NER | Named-entity recognition | batch_69cdd03482d481908b03d35dc2d16395 |
completed | April 2, 2026, 2:11 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69d2b66b256c8190861066f7c19008d2 |
completed | April 5, 2026, 7:22 p.m. |
Created at: March 30, 2026, 9 p.m.