Steel Plaza station
E245519
Steel Plaza station is a major light rail subway stop in downtown Pittsburgh, Pennsylvania, serving as a key transit hub near many of the city's central attractions and business centers.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Steel Plaza station canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T2230978 — 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: Steel Plaza station Context triple: [PPG Paints Arena, publicTransit, Steel Plaza station]
-
A.
Civic Center/UN Plaza station
Civic Center/UN Plaza station is a major underground transit hub in San Francisco serving both BART and Muni Metro lines near the city's Civic Center area.
-
B.
Government Center station
Government Center station is a major Boston subway hub and transfer point in downtown Boston, serving multiple MBTA Green Line branches and the Blue Line.
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C.
Gallery Place station
Gallery Place station is a major Washington Metro hub in downtown D.C. that serves multiple lines and provides access to the Capital One Arena and the Chinatown neighborhood.
-
D.
Grand Army Plaza station
Grand Army Plaza station is a New York City Subway station in Brooklyn serving the 2 and 3 lines near the Soldiers' and Sailors' Arch and the northern edge of Prospect Park.
-
E.
Park Place station
Park Place station is a New York City Subway station in Lower Manhattan that serves the 2 and 3 lines and is part of a larger interconnected transit hub with nearby stations.
- 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: Steel Plaza station Target entity description: Steel Plaza station is a major light rail subway stop in downtown Pittsburgh, Pennsylvania, serving as a key transit hub near many of the city's central attractions and business centers.
-
A.
Civic Center/UN Plaza station
Civic Center/UN Plaza station is a major underground transit hub in San Francisco serving both BART and Muni Metro lines near the city's Civic Center area.
-
B.
Government Center station
Government Center station is a major Boston subway hub and transfer point in downtown Boston, serving multiple MBTA Green Line branches and the Blue Line.
-
C.
Gallery Place station
Gallery Place station is a major Washington Metro hub in downtown D.C. that serves multiple lines and provides access to the Capital One Arena and the Chinatown neighborhood.
-
D.
Grand Army Plaza station
Grand Army Plaza station is a New York City Subway station in Brooklyn serving the 2 and 3 lines near the Soldiers' and Sailors' Arch and the northern edge of Prospect Park.
-
E.
Park Place station
Park Place station is a New York City Subway station in Lower Manhattan that serves the 2 and 3 lines and is part of a larger interconnected transit hub with nearby stations.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
light rail station
ⓘ
public transit station ⓘ subway station ⓘ |
| category |
Railway stations in Pittsburgh
ⓘ
Underground railway stations in Pennsylvania ⓘ |
| connectsArea |
Grant Street area of Downtown Pittsburgh
ⓘ
Liberty Avenue corridor ⓘ Sixth Avenue corridor ⓘ |
| connectsTo | surface bus routes in Downtown Pittsburgh ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| electrification | overhead line for light rail ⓘ |
| fareSystem | free fare zone ⓘ |
| hasAccessibility | accessible for people with disabilities ⓘ |
| hasEntrance | street-level entrances in Downtown Pittsburgh ⓘ |
| hasFacility |
passenger waiting areas
ⓘ
ticketing machines or validators ⓘ |
| hasFarePolicy | no fare required within downtown free fare zone ⓘ |
| hasFeature |
subway tunnels
ⓘ
underground concourse ⓘ |
| hasPlatformType |
island platform
ⓘ
side platform ⓘ |
| hasService |
Pittsburgh Light Rail Blue Line
ⓘ
Pittsburgh Light Rail Red Line ⓘ Pittsburgh Light Rail Silver Line ⓘ |
| hasZone | downtown free fare zone ⓘ |
| isPartOfNetwork |
Pittsburgh Regional Transit
ⓘ
surface form:
Pittsburgh Regional Transit rail system
|
| locatedIn |
Allegheny County
ⓘ
surface form:
Allegheny County, Pennsylvania
Pittsburgh, Pennsylvania ⓘ
surface form:
Downtown Pittsburgh
Pennsylvania ⓘ Pittsburgh, Pennsylvania ⓘ United States of America ⓘ
surface form:
United States
|
| nearbyAttraction |
Downtown Pittsburgh office district
ⓘ
Duquesne, Pennsylvania ⓘ
surface form:
Duquesne University area
Mellon Green ⓘ PPG Place ⓘ U.S. Steel Tower, Pittsburgh ⓘ
surface form:
U.S. Steel Tower
|
| numberOfTracks | 2 ⓘ |
| opened | 1980s ⓘ |
| operator | Port Authority of Allegheny County ⓘ |
| ownedBy | Port Authority of Allegheny County ⓘ |
| partOf | Pittsburgh Light Rail subway trunk ⓘ |
| railGauge | standard gauge ⓘ |
| role | major transit hub in Downtown Pittsburgh ⓘ |
| serves |
Pittsburgh Regional Transit
ⓘ
surface form:
Pittsburgh Light Rail
|
| servesArea |
Pittsburgh, Pennsylvania
ⓘ
surface form:
Pittsburgh central business district
|
| servesPurpose | access to central attractions and business centers in Pittsburgh ⓘ |
| structureType | underground ⓘ |
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: Steel Plaza station Description of subject: Steel Plaza station is a major light rail subway stop in downtown Pittsburgh, Pennsylvania, serving as a key transit hub near many of the city's central attractions and business centers.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.