USRA Light Mikado
E452580
The USRA Light Mikado was a widely used standardized 2-8-2 steam locomotive design developed by the United States Railroad Administration during World War I for freight service across multiple American railroads.
All labels observed (1)
| Label | Occurrences |
|---|---|
| USRA Light Mikado canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4561609 — 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 Mikado Context triple: [USRA Light Mikado 2-8-2 locomotive design, name, USRA Light Mikado]
-
A.
Salem Ultra Lights
Salem Ultra Lights are a lighter, low-tar and low-nicotine menthol cigarette variety marketed under the Salem brand.
-
B.
CP-140 Aurora
The CP-140 Aurora is a Canadian long-range maritime patrol and anti-submarine warfare aircraft based on the Lockheed P-3 Orion airframe and used primarily for surveillance and reconnaissance missions.
-
C.
Jenefar
Jenefar is an alternative spelling of the given name Jennifer, typically used as a feminine first name.
-
D.
SR-91
SR-91 is a state highway designation commonly used in the United States for a numbered route within a state's road network.
-
E.
Mitsubishi Diamondtron
Mitsubishi Diamondtron is a line of high-quality aperture grille CRT display tubes developed by Mitsubishi Electric as a rival to Sony's Trinitron technology.
- 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 Mikado Target entity description: The USRA Light Mikado was a widely used standardized 2-8-2 steam locomotive design developed by the United States Railroad Administration during World War I for freight service across multiple American railroads.
-
A.
Salem Ultra Lights
Salem Ultra Lights are a lighter, low-tar and low-nicotine menthol cigarette variety marketed under the Salem brand.
-
B.
CP-140 Aurora
The CP-140 Aurora is a Canadian long-range maritime patrol and anti-submarine warfare aircraft based on the Lockheed P-3 Orion airframe and used primarily for surveillance and reconnaissance missions.
-
C.
Jenefar
Jenefar is an alternative spelling of the given name Jennifer, typically used as a feminine first name.
-
D.
SR-91
SR-91 is a state highway designation commonly used in the United States for a numbered route within a state's road network.
-
E.
Mitsubishi Diamondtron
Mitsubishi Diamondtron is a line of high-quality aperture grille CRT display tubes developed by Mitsubishi Electric as a rival to Sony's Trinitron technology.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
USRA standard locomotive
ⓘ
freight locomotive ⓘ steam locomotive design ⓘ |
| boilerPressure | 200 psi ⓘ |
| builder |
American Locomotive Company
NERFINISHED
ⓘ
Baldwin Locomotive Works NERFINISHED ⓘ Lima Locomotive Works NERFINISHED ⓘ |
| configuration | tender locomotive ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| cylinderArrangement | simple expansion ⓘ |
| cylinderCount | 2 ⓘ |
| cylinderPosition | outside ⓘ |
| designedAs | standardized locomotive ⓘ |
| designedFor | freight service ⓘ |
| designedUnder | USRA standardization program NERFINISHED ⓘ |
| designedWeightOnDrivers | approximately 220,000 lb ⓘ |
| developedBy | United States Railroad Administration NERFINISHED ⓘ |
| driverDiameter | 63 in ⓘ |
| era | World War I NERFINISHED ⓘ |
| fuelType | coal ⓘ |
| gauge | standard gauge ⓘ |
| historicalSignificance |
influential in later American 2-8-2 freight locomotive designs
ⓘ
one of the most numerous USRA standard locomotive types ⓘ |
| introduced | 1918 ⓘ |
| nickname | Light Mikado NERFINISHED ⓘ |
| notableFeature |
light axle loading for widespread route availability
ⓘ
standardized components for ease of construction and maintenance ⓘ |
| operatedBy |
Atchison, Topeka and Santa Fe Railway
NERFINISHED
ⓘ
Baltimore and Ohio Railroad NERFINISHED ⓘ Chesapeake and Ohio Railway NERFINISHED ⓘ Chicago, Burlington and Quincy Railroad NERFINISHED ⓘ Louisville and Nashville Railroad NERFINISHED ⓘ New York Central Railroad NERFINISHED ⓘ Pennsylvania Railroad NERFINISHED ⓘ Southern Railway (U.S.) NERFINISHED ⓘ |
| powerType | steam ⓘ |
| serviceType |
general freight
ⓘ
road freight ⓘ |
| standardGauge | 4 ft 8 1⁄2 in ⓘ |
| successorDesignsBasedOn | many railroad-specific Mikado classes ⓘ |
| tenderType | coal and water tender ⓘ |
| totalEngineWeight | approximately 290,000 lb ⓘ |
| tractiveEffort | about 54,000 lbf ⓘ |
| UICClassification | 1′D1′ h2 ⓘ |
| usedFor | heavy freight trains ⓘ |
| usedIn |
United States of America
ⓘ
surface form:
United States
|
| usedOn | multiple American railroads ⓘ |
| valveGear | Walschaerts NERFINISHED ⓘ |
| wheelArrangement | 2-8-2 ⓘ |
| WhyteNotation | 2-8-2 ⓘ |
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 Mikado Description of subject: The USRA Light Mikado was a widely used standardized 2-8-2 steam locomotive design developed by the United States Railroad Administration during World War I for freight service across multiple American railroads.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.