Triple
T7315736
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Central Square, Cambridge |
E168406
|
entity |
| Predicate | hasPublicTransitStation |
P15438
|
FINISHED |
| Object | Central station (MBTA) |
E534401
|
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: Central station (MBTA) | Statement: [Central Square, Cambridge, hasPublicTransitStation, Central station (MBTA)]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Central station (MBTA) Context triple: [Central Square, Cambridge, hasPublicTransitStation, Central station (MBTA)]
-
A.
Government Center MBTA station
Government Center MBTA station is a major Boston subway hub serving the Green and Blue Lines beneath City Hall Plaza in the downtown Government Center area.
-
B.
MBTA Commuter Rail stations
MBTA Commuter Rail stations are passenger rail stops in the Greater Boston area that provide regional train service connecting outlying communities with Boston and other destinations on the Massachusetts Bay Transportation Authority network.
-
C.
MBTA commuter rail terminals
MBTA commuter rail terminals are major passenger rail hubs in the Boston area that serve as endpoints and transfer points for regional trains connecting the city with its surrounding suburbs and communities.
-
D.
MBTA Green Line stations
chosen
MBTA Green Line stations are the stops along Boston’s light rail Green Line, serving neighborhoods and suburbs with trolley-style rapid transit.
-
E.
Manchester station (MBTA)
Manchester station (MBTA) is a commuter rail stop on the Newburyport/Rockport Line serving the coastal town of Manchester-by-the-Sea, Massachusetts.
- 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_69c68a5251508190ad68df4151cfeb04 |
completed | March 27, 2026, 1:46 p.m. |
| NER | Named-entity recognition | batch_69c6ec04bdfc819093556aa5fa69e0e1 |
completed | March 27, 2026, 8:43 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c7e570bb0c8190a34c763e23e0b9da |
completed | March 28, 2026, 2:28 p.m. |
Created at: March 27, 2026, 3:02 p.m.