Triple
T29631086
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Plymouth Line |
E755572
|
entity |
| Predicate | instanceOf |
P0
|
FINISHED |
| Object | MBTA commuter rail line |
C74
|
CONCEPT FINISHED |
How this triple was built (1 step)
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.
CD
Concept disambiguation
gpt-5-mini-2025-08-07
Target class: MBTA commuter rail line Context triple: [Plymouth Line, instanceOf, MBTA commuter rail line]
-
A.
MBTA Commuter Rail station
An MBTA Commuter Rail station is a designated passenger facility along the Massachusetts Bay Transportation Authority’s regional rail network where trains stop to allow riders to board, alight, and connect with other modes of transit.
-
B.
MBTA Green Line service
MBTA Green Line service is a light rail transit line in the Boston metropolitan area that operates multiple branches, connecting downtown Boston with surrounding neighborhoods and suburbs via surface and subway tracks.
-
C.
MBTA service area
The MBTA service area is the geographic region in and around Greater Boston where the Massachusetts Bay Transportation Authority provides public transit services, including subway, bus, commuter rail, and ferry operations.
-
D.
MBTA facility
An MBTA facility is any physical property, structure, or site owned, leased, or operated by the Massachusetts Bay Transportation Authority that supports the provision, maintenance, or administration of its transit services.
-
E.
commuter rail line
chosen
A commuter rail line is a passenger train service that operates on fixed tracks and schedules to connect suburban or outlying areas with a central city, primarily serving daily work and school commuters.
- F. None of above.
Provenance (1 batch)
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_69f0ef88fbe081908f0ad90c1c413f1c |
completed | April 28, 2026, 5:34 p.m. |
Created at: April 28, 2026, 6:41 p.m.