Triple
T4056275
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | MBTA Commuter Rail coaches |
E84701
|
entity |
| Predicate | instanceOf |
P0
|
FINISHED |
| Object | passenger railcar fleet |
C14922
|
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: passenger railcar fleet Context triple: [MBTA Commuter Rail coaches, instanceOf, passenger railcar fleet]
-
A.
Amtrak rolling stock
Amtrak rolling stock comprises the locomotives, passenger cars, and specialized rail vehicles owned or operated by Amtrak for intercity and regional passenger rail service in the United States.
-
B.
passenger railcar family
A passenger railcar family is a group of related rail vehicles sharing a common design platform, structural features, and systems, adapted into multiple variants to serve different passenger transport roles and service requirements.
-
C.
passenger train
A passenger train is a rail vehicle or series of connected vehicles designed to transport people and their luggage between stations along a fixed route and schedule.
-
D.
passenger rail service
Passenger rail service is a transportation system that operates trains to carry people between locations on a scheduled basis, typically offering various classes of comfort and amenities.
-
E.
diesel-electric multiple unit family
A diesel-electric multiple unit family is a group of closely related self-propelled rail vehicles that use onboard diesel engines to generate electricity for traction motors, sharing common design, components, and performance characteristics.
- F. None of above. chosen
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_69aed933bec881909edfa28ebb69c634 |
completed | March 9, 2026, 2:29 p.m. |
Created at: March 9, 2026, 3:38 p.m.