Triple
T21228455
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | PS-2 covered hopper |
E523142
|
entity |
| Predicate | instanceOf |
P0
|
FINISHED |
| Object | railroad freight car type |
C8948
|
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: railroad freight car type Context triple: [PS-2 covered hopper, instanceOf, railroad freight car type]
-
A.
railroad rolling stock identifier
A railroad rolling stock identifier is a unique code or marking assigned to each rail vehicle to distinguish it from others for tracking, operations, and maintenance purposes.
-
B.
freight railroad
A freight railroad is a rail transport system dedicated to moving goods and commodities—such as raw materials, manufactured products, and containers—using freight trains over a network of tracks.
-
C.
train type
A train type is a classification that distinguishes trains based on their design, purpose, and operational characteristics, such as speed, service level, and route usage.
-
D.
United States Railroad Administration standard freight car design
A United States Railroad Administration standard freight car design is a government-developed, wartime-era railcar specification created during World War I to standardize construction, improve interoperability, and increase efficiency across American railroads.
-
E.
rolling stock
chosen
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_69e0b512ad94819087942b2ed925185f |
completed | April 16, 2026, 10:08 a.m. |
Created at: April 16, 2026, 3:44 p.m.