Union station (TTC)
E239025
Union station (TTC) is a major downtown Toronto subway station and transit hub that connects multiple subway lines with regional rail and other transportation services.
All labels observed (5)
| Label | Occurrences |
|---|---|
| GO Transit at Union Station | 1 |
| Toronto Transit Commission Union subway station | 1 |
| Toronto Union Station rail corridor | 1 |
| Toronto subway Line 1 at Union Station | 1 |
| Union station (TTC) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2163226 — 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: Union station (TTC) Context triple: [Toronto subway, hasStation, Union station (TTC)]
-
A.
Sheppard–Yonge station
Sheppard–Yonge station is a major Toronto subway interchange where the Yonge–University line connects with the Sheppard line, serving as a key transit hub in North York.
-
B.
Spadina station
Spadina station is a major Toronto subway interchange that connects the Yonge–University and Bloor–Danforth lines, serving the Spadina and Annex neighborhoods.
-
C.
North York Centre station
North York Centre station is a busy underground subway stop in Toronto’s North York district, serving the commercial and civic hub around Mel Lastman Square.
-
D.
Bloor–Yonge station
Bloor–Yonge station is one of Toronto’s busiest subway hubs, serving as a major transfer point between the city’s primary north–south and east–west rapid transit lines.
-
E.
Brampton GO Station
Brampton GO Station is a commuter rail and bus transit hub in Brampton, Ontario, serving GO Transit and regional passengers on the Kitchener line.
- 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: Union station (TTC) Target entity description: Union station (TTC) is a major downtown Toronto subway station and transit hub that connects multiple subway lines with regional rail and other transportation services.
-
A.
Sheppard–Yonge station
Sheppard–Yonge station is a major Toronto subway interchange where the Yonge–University line connects with the Sheppard line, serving as a key transit hub in North York.
-
B.
Spadina station
Spadina station is a major Toronto subway interchange that connects the Yonge–University and Bloor–Danforth lines, serving the Spadina and Annex neighborhoods.
-
C.
North York Centre station
North York Centre station is a busy underground subway stop in Toronto’s North York district, serving the commercial and civic hub around Mel Lastman Square.
-
D.
Bloor–Yonge station
Bloor–Yonge station is one of Toronto’s busiest subway hubs, serving as a major transfer point between the city’s primary north–south and east–west rapid transit lines.
-
E.
Brampton GO Station
Brampton GO Station is a commuter rail and bus transit hub in Brampton, Ontario, serving GO Transit and regional passengers on the Kitchener line.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
Toronto subway station
ⓘ
subway station ⓘ transportation hub ⓘ |
| accessible | yes ⓘ |
| adjacentTo | Union Station (rail) ⓘ |
| connectedTo |
PATH pedestrian network
ⓘ
surface form:
PATH underground pedestrian network
|
| connectsWith |
GO Transit
ⓘ
surface form:
GO Transit regional rail
Toronto streetcar system ⓘ
surface form:
Toronto streetcar network
UP Express ⓘ Union station ⓘ
surface form:
Union Station Bus Terminal
Via Rail services at Union Station ⓘ |
| country | Canada ⓘ |
| fareSystem |
Presto card
ⓘ
TTC fares ⓘ |
| fareZone | TTC primary zone ⓘ |
| formerName | Union ⓘ |
| hasConnections |
airport rail link
ⓘ
bus ⓘ commuter rail ⓘ intercity rail ⓘ regional rail ⓘ streetcar ⓘ |
| hasElevators | yes ⓘ |
| hasEscalators | yes ⓘ |
| hasFeature |
direct indoor connections to rail terminal
ⓘ
high passenger volumes ⓘ multiple concourse levels ⓘ |
| hasPlatformType |
island platform
ⓘ
side platform ⓘ |
| hasStationCode | UN ⓘ |
| isMajorInterchange | yes ⓘ |
| locatedIn |
Downtown Toronto
ⓘ
Ontario ⓘ Toronto ⓘ |
| mapColor | yellow (Line 1) ⓘ |
| near |
Harbourfront Centre
ⓘ
surface form:
Harbourfront
Rogers Centre ⓘ Scotiabank Arena ⓘ |
| openedForService | 1954 ⓘ |
| operator | Toronto Transit Commission ⓘ |
| ownedBy | Toronto Transit Commission ⓘ |
| partOf |
Line 1 Yonge–University
ⓘ
Toronto subway ⓘ |
| servesArea |
Downtown Toronto
ⓘ
surface form:
Toronto financial district
Toronto Harbour ⓘ
surface form:
Toronto waterfront
|
| structureType | underground station ⓘ |
| ticketing | fare gates with smartcard readers ⓘ |
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: Union station (TTC) Description of subject: Union station (TTC) is a major downtown Toronto subway station and transit hub that connects multiple subway lines with regional rail and other transportation services.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Toronto Union Station rail corridor
subject surface form:
UP Express at Union Station
this entity surface form:
Toronto Transit Commission Union subway station
this entity surface form:
GO Transit at Union Station
this entity surface form:
Toronto subway Line 1 at Union Station