Triple
T25779949
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Southern Pacific AC-9 |
E649259
|
entity |
| Predicate | instanceOf |
P0
|
FINISHED |
| Object | 2-8-8-4 locomotive |
C3459
|
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: 2-8-8-4 locomotive Context triple: [Southern Pacific AC-9, instanceOf, 2-8-8-4 locomotive]
-
A.
streamlined locomotive
A streamlined locomotive is a high-speed railway engine designed with smooth, aerodynamic contours to reduce air resistance and improve efficiency and performance.
-
B.
diesel-electric locomotive family
A diesel-electric locomotive family is a group of closely related locomotive models that share a common diesel engine and electric transmission design, with variations in power, configuration, and features tailored to different rail service needs.
-
C.
railway locomotive
chosen
A railway locomotive is a powered rail vehicle that provides the motive force to pull or push trains along railway tracks.
-
D.
EMD 710 series engine
The EMD 710 series engine is a two-stroke, turbocharged diesel locomotive and marine prime mover known for its modular design, high power-to-weight ratio, and improved fuel efficiency over earlier EMD engine families.
-
E.
locomotive works
A locomotive works is an industrial facility where locomotives are designed, manufactured, assembled, repaired, and maintained.
- 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_69e7ab333b508190b6d708d8d9a328ed |
completed | April 21, 2026, 4:52 p.m. |
Created at: April 22, 2026, 5:37 a.m.