USRA Light Santa Fe 2-10-2
E452574
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.
All labels observed (1)
| Label | Occurrences |
|---|---|
| USRA Light Santa Fe 2-10-2 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4561521 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: USRA Light Santa Fe 2-10-2 Context triple: [USRA standard steam locomotive designs, hasPart, USRA Light Santa Fe 2-10-2]
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A.
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.
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B.
Union Pacific No. 119
Union Pacific No. 119 was the steam locomotive that represented the Union Pacific Railroad at the 1869 Golden Spike ceremony marking the completion of the First Transcontinental Railroad.
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C.
Atchison Topeka and Santa Fe 4-8-4 locomotive
The Atchison, Topeka and Santa Fe 4-8-4 locomotive is a powerful steam engine from the famed Santa Fe Railway, known for hauling high-speed passenger and heavy freight trains across the American West in the mid-20th century.
-
D.
Southern Pacific Cab Forward locomotive
The Southern Pacific Cab Forward locomotive is a distinctive class of steam engines with the cab placed at the front for crew safety, famously used by the Southern Pacific Railroad to haul trains through long, smoky mountain tunnels and snow sheds in the American West.
-
E.
Union Pacific Challenger
The Union Pacific Challenger was a named passenger train operated by the Union Pacific Railroad, known for providing comfortable, mid-priced long-distance service across the western United States.
- 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 Light Santa Fe 2-10-2 Target entity description: 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.
-
A.
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.
-
B.
Union Pacific No. 119
Union Pacific No. 119 was the steam locomotive that represented the Union Pacific Railroad at the 1869 Golden Spike ceremony marking the completion of the First Transcontinental Railroad.
-
C.
Atchison Topeka and Santa Fe 4-8-4 locomotive
The Atchison, Topeka and Santa Fe 4-8-4 locomotive is a powerful steam engine from the famed Santa Fe Railway, known for hauling high-speed passenger and heavy freight trains across the American West in the mid-20th century.
-
D.
Southern Pacific Cab Forward locomotive
The Southern Pacific Cab Forward locomotive is a distinctive class of steam engines with the cab placed at the front for crew safety, famously used by the Southern Pacific Railroad to haul trains through long, smoky mountain tunnels and snow sheds in the American West.
-
E.
Union Pacific Challenger
The Union Pacific Challenger was a named passenger train operated by the Union Pacific Railroad, known for providing comfortable, mid-priced long-distance service across the western United States.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
2-10-2 type locomotive
ⓘ
USRA standard locomotive design ⓘ freight locomotive ⓘ steam locomotive ⓘ |
| belongsToFamily | USRA Light locomotive designs NERFINISHED ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| designedFor |
heavy freight service
ⓘ
slow, powerful hauling ⓘ |
| designedUnder | USRA standardization program ⓘ |
| developedBy | United States Railroad Administration NERFINISHED ⓘ |
| era | World War I NERFINISHED ⓘ |
| fuelType | coal ⓘ |
| hasArticulatedFrame | no ⓘ |
| hasBoilerType | fire-tube boiler ⓘ |
| hasBrakeType | air brakes ⓘ |
| hasConfigurationName | Santa Fe NERFINISHED ⓘ |
| hasControl | steam-powered valves and cylinders ⓘ |
| hasCylinderArrangement | simple expansion ⓘ |
| hasCylinderCount | 2 ⓘ |
| hasDesignAuthority | United States Railroad Administration NERFINISHED ⓘ |
| hasDesignGoal |
high tractive effort at low speeds
ⓘ
interchangeable parts among USRA locomotives ⓘ simplified wartime production ⓘ |
| hasDrivingWheelArrangement | five coupled axles ⓘ |
| hasDrivingWheels | 10 ⓘ |
| hasFrameType | rigid frame ⓘ |
| hasGauge | standard gauge ⓘ |
| hasLeadingWheels | 2 ⓘ |
| hasLocomotiveType | non-articulated ⓘ |
| hasPrimaryRole | road freight locomotive ⓘ |
| hasSeparateLeadingTruck | yes ⓘ |
| hasSeparateTrailingTruck | yes ⓘ |
| hasServiceRole | drag freight locomotive ⓘ |
| hasServiceType | mainline freight ⓘ |
| hasTender | yes ⓘ |
| hasTrailingWheels | 2 ⓘ |
| hasValveGear | Walschaerts valve gear NERFINISHED ⓘ |
| hasWheelArrangement | 2-10-2 ⓘ |
| hasWhyteNotation | 2-10-2 ⓘ |
| introducedBy | United States Railroad Administration NERFINISHED ⓘ |
| isStandardizedDesign | true ⓘ |
| optimizedFor | tractive effort rather than speed ⓘ |
| powerType | steam ⓘ |
| primaryUse | freight trains ⓘ |
| usedIn | United States railroads NERFINISHED ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: USRA Light Santa Fe 2-10-2 Description of subject: 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.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.