Tatra T1 tram
E315084
The Tatra T1 tram is an early postwar Czechoslovak streetcar model that adapted American PCC technology into a robust, standardized design widely used across Eastern Europe.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Tatra T1 tram canonical | 2 |
| Tatra T2 tram | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2952761 — 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: Tatra T1 tram Context triple: [PCC streetcar, influenced, Tatra T1 tram]
-
A.
T-68 tram
The T-68 tram was a type of light rail vehicle used on Greater Manchester’s Metrolink system in the UK before being replaced by newer models.
-
B.
LM-93 tram
The LM-93 tram is a Russian-built light rail vehicle model commonly used in city tram and metrotram systems such as the Volgograd Metrotram.
-
C.
SL95 tram
The SL95 tram is a high-floor, bi-directional tram model used in Oslo, Norway, known for its large capacity and operation on the city’s light rail and tram network.
-
D.
SL79 tram
The SL79 tram is a class of articulated light rail vehicles used for passenger service on the Oslo Tramway network in Norway.
-
E.
Stadler Tango trams
Stadler Tango trams are modern, low-floor light rail vehicles built by Stadler Rail, commonly used in European cities for high-capacity, urban public transport services.
- 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: Tatra T1 tram Target entity description: The Tatra T1 tram is an early postwar Czechoslovak streetcar model that adapted American PCC technology into a robust, standardized design widely used across Eastern Europe.
-
A.
T-68 tram
The T-68 tram was a type of light rail vehicle used on Greater Manchester’s Metrolink system in the UK before being replaced by newer models.
-
B.
LM-93 tram
The LM-93 tram is a Russian-built light rail vehicle model commonly used in city tram and metrotram systems such as the Volgograd Metrotram.
-
C.
SL95 tram
The SL95 tram is a high-floor, bi-directional tram model used in Oslo, Norway, known for its large capacity and operation on the city’s light rail and tram network.
-
D.
SL79 tram
The SL79 tram is a class of articulated light rail vehicles used for passenger service on the Oslo Tramway network in Norway.
-
E.
Stadler Tango trams
Stadler Tango trams are modern, low-floor light rail vehicles built by Stadler Rail, commonly used in European cities for high-capacity, urban public transport services.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
rail vehicle
ⓘ
streetcar ⓘ tramcar ⓘ |
| bodyConstruction | all-steel welded body ⓘ |
| bogieType | two-axle powered bogies ⓘ |
| controlSystem | PCC-type electric control equipment ⓘ |
| countryOfOrigin | Czechoslovakia ⓘ |
| designedBy | ČKD Tatra design team ⓘ |
| designedFor | urban tramway service ⓘ |
| doorConfiguration | two double-leaf doors on right side ⓘ |
| era | post–World War II ⓘ |
| heritageStatus | several units preserved as museum vehicles ⓘ |
| inception | 1951 ⓘ |
| manufacturer | ČKD Tatra ⓘ |
| notableFor |
adapting American PCC technology to Czechoslovak conditions
ⓘ
standardized tram design for Eastern Bloc cities ⓘ |
| numberBuilt | 287 ⓘ |
| operator |
Dopravní podnik hl. m. Prahy
ⓘ
surface form:
Dopravní podnik hlavního města Prahy
Dopravní podnik města Brna ⓘ |
| powerCollectionMethod | pantograph ⓘ |
| predecessor | PCC streetcar prototypes in Prague ⓘ |
| preservedIn |
Brno Technical Museum
ⓘ
Prague Public Transport Museum ⓘ |
| productionEnd | 1958 ⓘ |
| productionStart | 1952 ⓘ |
| propulsionType | electric traction ⓘ |
| successor |
Tatra T3 tram
ⓘ
surface form:
Tatra T2
Tatra T3 tram ⓘ
surface form:
Tatra T3
|
| technologyBasedOn |
PCC streetcar
ⓘ
surface form:
PCC streetcar design
|
| trackGauge | standard gauge ⓘ |
| usedInCity |
Bratislava
ⓘ
Brno ⓘ Bucharest ⓘ Dresden ⓘ Kharkiv ⓘ
surface form:
Kharkov
Kyiv ⓘ
surface form:
Kiev
Košice ⓘ Leipzig ⓘ Most ⓘ Ostrava ⓘ Plzeň ⓘ Prague ⓘ Rostov-on-Don ⓘ |
| usedInCountry |
Czechoslovakia
ⓘ
East Germany ⓘ Romania ⓘ Soviet Union ⓘ |
| vehicleType | single-ended tramcar ⓘ |
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: Tatra T1 tram Description of subject: The Tatra T1 tram is an early postwar Czechoslovak streetcar model that adapted American PCC technology into a robust, standardized design widely used across Eastern Europe.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Tatra T2 tram
subject surface form:
PCC streetcar