Triple
T8936331
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | MBTA Green Line rolling stock |
E212786
|
entity |
| Predicate | instanceOf |
P0
|
FINISHED |
| Object | light rail rolling stock |
C2237
|
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: light rail rolling stock Context triple: [MBTA Green Line rolling stock, instanceOf, light rail rolling stock]
-
A.
light rail vehicle
chosen
A light rail vehicle is a rail-based transit vehicle designed for urban and suburban passenger service, typically operating on dedicated or shared tracks with frequent stops and moderate capacity.
-
B.
rail vehicle
A rail vehicle is a wheeled conveyance designed to operate on railway tracks for transporting passengers, freight, or performing specialized rail-related tasks.
-
C.
rapid transit vehicle
A rapid transit vehicle is a high-capacity, electrically powered rail car or train designed to provide frequent, fast, and reliable urban or suburban passenger transportation on dedicated or grade-separated tracks.
-
D.
light rail transit line
A light rail transit line is a fixed-route urban or suburban rail corridor using electrically powered, relatively low-capacity trains that operate on dedicated or semi-exclusive tracks to provide frequent, short- to medium-distance passenger service.
-
E.
rolling stock
Rolling stock refers to all the vehicles that move on a railway, including locomotives, passenger coaches, freight wagons, and maintenance units.
- 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_69ca839694c88190b324ffeb43d23b08 |
completed | March 30, 2026, 2:07 p.m. |
Created at: March 30, 2026, 6:58 p.m.