Pittsburgh streetcar system
E1205287
UNEXPLORED
The Pittsburgh streetcar system was an extensive urban and suburban electric tram network that once served as a primary mode of public transportation in and around Pittsburgh, Pennsylvania.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Pittsburgh streetcar network | 1 |
| Pittsburgh streetcar system canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T16315278 — 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: Pittsburgh streetcar system Context triple: [Pennsylvania trolley gauge, historicallyUsedBy, Pittsburgh streetcar system]
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A.
Pittsburgh Light Rail
Pittsburgh Light Rail is a light rail transit system serving Pittsburgh, Pennsylvania and its nearby neighborhoods, providing urban and commuter rail service including access to the city’s North Shore district.
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B.
Pittsburgh Light Rail subway trunk
The Pittsburgh Light Rail subway trunk is the central underground segment of Pittsburgh’s light rail system that carries trains through the city’s downtown core.
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C.
Pittsburgh Light Rail Silver Line
The Pittsburgh Light Rail Silver Line is a light rail service in Pittsburgh, Pennsylvania, that operates as part of the city's "T" system, connecting downtown with surrounding neighborhoods and suburbs.
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D.
Pittsburgh Light Rail Red Line
The Pittsburgh Light Rail Red Line is a major light rail route in Pittsburgh, Pennsylvania, connecting downtown with several southern neighborhoods and suburbs.
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E.
Pittsburgh Light Rail Blue Line
The Pittsburgh Light Rail Blue Line is a light rail service in Pittsburgh, Pennsylvania, that connects downtown with various southern suburbs as part of the Port Authority’s “T” system.
- 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: Pittsburgh streetcar system Target entity description: The Pittsburgh streetcar system was an extensive urban and suburban electric tram network that once served as a primary mode of public transportation in and around Pittsburgh, Pennsylvania.
-
A.
Pittsburgh Light Rail
Pittsburgh Light Rail is a light rail transit system serving Pittsburgh, Pennsylvania and its nearby neighborhoods, providing urban and commuter rail service including access to the city’s North Shore district.
-
B.
Pittsburgh Light Rail subway trunk
The Pittsburgh Light Rail subway trunk is the central underground segment of Pittsburgh’s light rail system that carries trains through the city’s downtown core.
-
C.
Pittsburgh Light Rail Silver Line
The Pittsburgh Light Rail Silver Line is a light rail service in Pittsburgh, Pennsylvania, that operates as part of the city's "T" system, connecting downtown with surrounding neighborhoods and suburbs.
-
D.
Pittsburgh Light Rail Red Line
The Pittsburgh Light Rail Red Line is a major light rail route in Pittsburgh, Pennsylvania, connecting downtown with several southern neighborhoods and suburbs.
-
E.
Pittsburgh Light Rail Blue Line
The Pittsburgh Light Rail Blue Line is a light rail service in Pittsburgh, Pennsylvania, that connects downtown with various southern suburbs as part of the Port Authority’s “T” system.
- F. None of above. chosen
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Pittsburgh streetcar system