USRA composite gondola
E452577
The USRA composite gondola was a World War I–era open-top freight car design that combined wood and steel construction to haul bulk commodities like coal and ore on American railroads.
All labels observed (2)
| Label | Occurrences |
|---|---|
| PS-5 gondola | 1 |
| USRA composite gondola canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4561574 — 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 composite gondola Context triple: [USRA standard freight car designs, hasPart, USRA composite gondola]
-
A.
Peak 2 Peak Gondola
The Peak 2 Peak Gondola is a record-setting aerial tramway in Whistler, British Columbia, that links Whistler and Blackcomb mountains and is renowned for its long unsupported span and panoramic alpine views.
-
B.
Monte Solaro chairlift
The Monte Solaro chairlift is a scenic single-seat cable lift on the island of Capri that transports visitors from Anacapri up to the island’s highest peak, offering panoramic views of the Bay of Naples and surrounding coastline.
-
C.
Aerial Tram
The Aerial Tram is a cable-driven urban transit system in Portland, Oregon, that carries passengers between the South Waterfront district and Oregon Health & Science University on Marquam Hill.
-
D.
Vogel cable car
The Vogel cable car is an aerial lift in Slovenia that transports visitors from the shores of Lake Bohinj up to the Vogel ski and hiking area in the Julian Alps, offering panoramic mountain and lake views.
-
E.
Yastrebets gondola lift upper station
Yastrebets gondola lift upper station is the mountain-top terminal of the Yastrebets cable car in Bulgaria’s Rila Mountains, serving as a key access point for visitors heading toward the Musala peak area.
- 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 composite gondola Target entity description: The USRA composite gondola was a World War I–era open-top freight car design that combined wood and steel construction to haul bulk commodities like coal and ore on American railroads.
-
A.
Peak 2 Peak Gondola
The Peak 2 Peak Gondola is a record-setting aerial tramway in Whistler, British Columbia, that links Whistler and Blackcomb mountains and is renowned for its long unsupported span and panoramic alpine views.
-
B.
Monte Solaro chairlift
The Monte Solaro chairlift is a scenic single-seat cable lift on the island of Capri that transports visitors from Anacapri up to the island’s highest peak, offering panoramic views of the Bay of Naples and surrounding coastline.
-
C.
Aerial Tram
The Aerial Tram is a cable-driven urban transit system in Portland, Oregon, that carries passengers between the South Waterfront district and Oregon Health & Science University on Marquam Hill.
-
D.
Vogel cable car
The Vogel cable car is an aerial lift in Slovenia that transports visitors from the shores of Lake Bohinj up to the Vogel ski and hiking area in the Julian Alps, offering panoramic mountain and lake views.
-
E.
Yastrebets gondola lift upper station
Yastrebets gondola lift upper station is the mountain-top terminal of the Yastrebets cable car in Bulgaria’s Rila Mountains, serving as a key access point for visitors heading toward the Musala peak area.
- F. None of above. chosen
Statements (40)
| Predicate | Object |
|---|---|
| instanceOf |
United States Railroad Administration standard freight car design
ⓘ
freight car design ⓘ gondola car ⓘ |
| brakeType | air brakes ⓘ |
| category |
North American freight rolling stock
ⓘ
USRA standard freight cars NERFINISHED ⓘ |
| constructionType | composite wood-and-steel construction ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| couplerType | Janney (knuckle) coupler NERFINISHED ⓘ |
| designedFor |
heavy bulk lading
ⓘ
interchange service between multiple railroads ⓘ |
| designedToBe | interchangeable among US railroads ⓘ |
| designer | United States Railroad Administration NERFINISHED ⓘ |
| era | World War I era NERFINISHED ⓘ |
| feature |
open top for loading from above
ⓘ
side dumping capability via doors or openings ⓘ |
| gauge | standard gauge ⓘ |
| historicalContext | developed under federal control of US railroads during World War I ⓘ |
| influenced | later all-steel gondola designs ⓘ |
| inServiceDuring |
1910s
ⓘ
1920s ⓘ 1930s ⓘ 1940s ⓘ |
| introducedAs | USRA standard gondola design NERFINISHED ⓘ |
| material |
steel hardware
ⓘ
steel underframe ⓘ wood ends ⓘ wood sides ⓘ |
| operatedBy | multiple Class I railroads in the United States ⓘ |
| primaryUse |
hauling bulk commodities
ⓘ
hauling coal ⓘ hauling ore ⓘ |
| railcarType | open-top gondola ⓘ |
| serviceEntryPeriod | circa 1918 ⓘ |
| standardizedBy | United States Railroad Administration NERFINISHED ⓘ |
| typicalCargo |
bituminous coal
ⓘ
coke ⓘ iron ore ⓘ stone and aggregates ⓘ |
| usedOn | American railroads ⓘ |
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 composite gondola Description of subject: The USRA composite gondola was a World War I–era open-top freight car design that combined wood and steel construction to haul bulk commodities like coal and ore on American railroads.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
PS-5 gondola