Triple
T18832772
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | USRA Light Mountain 4-8-2 |
E460575
|
entity |
| Predicate | designStandard |
P1587
|
FINISHED |
| Object | USRA standard light 4-8-2 |
—
|
NE NERFINISHED |
How this triple was built (3 steps)
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.
NER
Named-entity recognition
gpt-5-mini
Instruction
Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).
Input
Phrase: USRA standard light 4-8-2 | Statement: [USRA Light Mountain 4-8-2, designStandard, USRA standard light 4-8-2]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: USRA standard light 4-8-2 Context triple: [USRA Light Mountain 4-8-2, designStandard, USRA standard light 4-8-2]
-
A.
USRA Light Santa Fe 2-10-2
The USRA Light Santa Fe 2-10-2 was a standardized heavy freight steam locomotive design developed under the United States Railroad Administration during World War I, featuring a 2-10-2 wheel arrangement optimized for slow, powerful hauling.
-
B.
USRA 0-8-0 switcher
The USRA 0-8-0 switcher was a standardized heavy steam switching locomotive widely used in North American rail yards during the early 20th century.
-
C.
USRA Light Mikado 2-8-2 locomotive design
The USRA Light Mikado 2-8-2 locomotive design was a widely adopted standard World War I–era American steam freight locomotive, known for its balanced power, efficiency, and influence on subsequent 2-8-2 designs.
-
D.
USRA 2-8-8-2 articulated locomotive
The USRA 2-8-8-2 articulated locomotive was a heavy freight steam engine design developed under the United States Railroad Administration during World War I, known for its powerful compound articulated configuration used by multiple American railroads.
-
E.
USRA 4-6-0 Ten‑Wheeler
The USRA 4-6-0 Ten‑Wheeler is a standardized World War I–era American steam locomotive type with a 4-6-0 wheel arrangement, designed for versatile mixed-traffic service under the United States Railroad Administration.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: USRA standard light 4-8-2 Target entity description: The USRA standard light 4-8-2 was a widely used United States Railroad Administration "Mountain" type steam locomotive design intended as a versatile, medium-weight mainline passenger and freight engine during the World War I era.
-
A.
USRA Light Santa Fe 2-10-2
The USRA Light Santa Fe 2-10-2 was a standardized heavy freight steam locomotive design developed under the United States Railroad Administration during World War I, featuring a 2-10-2 wheel arrangement optimized for slow, powerful hauling.
-
B.
USRA 0-8-0 switcher
The USRA 0-8-0 switcher was a standardized heavy steam switching locomotive widely used in North American rail yards during the early 20th century.
-
C.
USRA Light Mikado 2-8-2 locomotive design
The USRA Light Mikado 2-8-2 locomotive design was a widely adopted standard World War I–era American steam freight locomotive, known for its balanced power, efficiency, and influence on subsequent 2-8-2 designs.
-
D.
USRA 2-8-8-2 articulated locomotive
The USRA 2-8-8-2 articulated locomotive was a heavy freight steam engine design developed under the United States Railroad Administration during World War I, known for its powerful compound articulated configuration used by multiple American railroads.
-
E.
USRA 4-6-0 Ten‑Wheeler
The USRA 4-6-0 Ten‑Wheeler is a standardized World War I–era American steam locomotive type with a 4-6-0 wheel arrangement, designed for versatile mixed-traffic service under the United States Railroad Administration.
- F. None of above. chosen
Provenance (2 batches)
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_69d8dcf94c288190a06dea029ae4b223 |
completed | April 10, 2026, 11:20 a.m. |
| NER | Named-entity recognition | batch_69e5a99b540c8190a29e5f9d56791d41 |
completed | April 20, 2026, 4:20 a.m. |
Created at: April 10, 2026, 11:56 a.m.