USRA 0-8-0 switcher
E453380
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.
All labels observed (1)
| Label | Occurrences |
|---|---|
| USRA 0-8-0 switcher canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4561524 — 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 0-8-0 switcher Context triple: [USRA standard steam locomotive designs, hasPart, USRA 0-8-0 switcher]
-
A.
USRA 0-6-0 switcher
The USRA 0-6-0 switcher was a standardized American steam locomotive type designed for yard and switching duties under the United States Railroad Administration during World War I.
-
B.
USRA 2-6-6-2 articulated locomotive
The USRA 2-6-6-2 articulated locomotive was a standardized World War I–era American steam freight engine featuring a Mallet-type articulated wheel arrangement designed for heavy, slow freight service on steep grades and curving track.
-
C.
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.
-
D.
USRA Light Pacific 4-6-2
The USRA Light Pacific 4-6-2 was a widely used American passenger steam locomotive type developed under the United States Railroad Administration during World War I, known for its balanced performance and standardized design.
-
E.
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.
- 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 0-8-0 switcher Target entity description: 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.
-
A.
USRA 0-6-0 switcher
The USRA 0-6-0 switcher was a standardized American steam locomotive type designed for yard and switching duties under the United States Railroad Administration during World War I.
-
B.
USRA 2-6-6-2 articulated locomotive
The USRA 2-6-6-2 articulated locomotive was a standardized World War I–era American steam freight engine featuring a Mallet-type articulated wheel arrangement designed for heavy, slow freight service on steep grades and curving track.
-
C.
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.
-
D.
USRA Light Pacific 4-6-2
The USRA Light Pacific 4-6-2 was a widely used American passenger steam locomotive type developed under the United States Railroad Administration during World War I, known for its balanced performance and standardized design.
-
E.
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.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
USRA standard locomotive design
ⓘ
steam locomotive ⓘ switcher locomotive ⓘ |
| boilerType | fire-tube boiler ⓘ |
| brakeType | air brakes ⓘ |
| category |
0-8-0 locomotives
ⓘ
USRA locomotives NERFINISHED ⓘ |
| controlType | manual controls ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| cylinderConfiguration | two-cylinder simple expansion ⓘ |
| designedFor | heavy switching duties ⓘ |
| designer | United States Railroad Administration NERFINISHED ⓘ |
| era | early 20th century ⓘ |
| fuelType | coal ⓘ |
| gauge | standard gauge ⓘ |
| gaugeWidth |
1435 mm
ⓘ
4 ft 8 1⁄2 in ⓘ |
| hasLeadingWheels | no ⓘ |
| hasTrailingWheels | no ⓘ |
| introducedBy | United States Railroad Administration NERFINISHED ⓘ |
| introducedDuring | World War I NERFINISHED ⓘ |
| locomotiveType | heavy switcher ⓘ |
| numberOfDrivingAxles | 4 ⓘ |
| numberOfDrivingWheels | 8 ⓘ |
| operatorType |
Class I railroads
NERFINISHED
ⓘ
industrial railroads ⓘ terminal railroads ⓘ |
| partOf | USRA standard locomotive program NERFINISHED ⓘ |
| powerType | steam ⓘ |
| primaryUse |
freight switching
ⓘ
yard switching ⓘ |
| serviceRole |
industrial switching
ⓘ
yard service ⓘ |
| standardized | true ⓘ |
| technologyGeneration | late steam era ⓘ |
| tenderType | coal-fired tender ⓘ |
| timePeriodOfUse |
1910s
ⓘ
1920s ⓘ 1930s ⓘ 1940s ⓘ 1950s ⓘ |
| tractionType | steam-driven rods ⓘ |
| usedInContext |
classification yards
ⓘ
industrial plants ⓘ rail yards ⓘ |
| usedInCountry |
Canada
ⓘ
United States of America ⓘ
surface form:
United States
|
| usedInRegion | North America NERFINISHED ⓘ |
| wheelArrangement | 0-8-0 ⓘ |
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 0-8-0 switcher Description of subject: 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.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.