GO Transit Stouffville line
E151489
The GO Transit Stouffville line is a commuter rail line in the Greater Toronto Area that runs between downtown Toronto and communities to the northeast, including Stouffville.
All labels observed (4)
| Label | Occurrences |
|---|---|
| GO Transit Stouffville line canonical | 6 |
| GO Transit | 1 |
| GO Transit Stouffville corridor | 1 |
| GO Transit Stouffville line trains | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1257440 — 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: GO Transit Stouffville line Context triple: [Union Station, Toronto, serves, GO Transit Stouffville line]
-
A.
GO Transit Kitchener line
The GO Transit Kitchener line is a regional commuter rail corridor in Southern Ontario that connects Toronto with communities to the west, including Kitchener and Waterloo.
-
B.
GO Transit Barrie line
The GO Transit Barrie line is a commuter rail service in the Greater Toronto Area that connects downtown Toronto with communities to the north, including the city of Barrie.
-
C.
GO Transit Lakeshore East line
The GO Transit Lakeshore East line is a commuter rail corridor in the Greater Toronto Area that runs eastward from Toronto’s Union Station through suburban communities toward Oshawa.
-
D.
GO Transit
GO Transit is a regional public transit system in Southern Ontario, Canada, providing commuter rail and bus services connecting Toronto with surrounding municipalities.
-
E.
GO Transit Lakeshore West line
The GO Transit Lakeshore West line is a commuter rail corridor in Southern Ontario that runs westward from Toronto’s Union Station through cities along the shore of Lake Ontario to Hamilton and Niagara Falls.
- 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: GO Transit Stouffville line Target entity description: The GO Transit Stouffville line is a commuter rail line in the Greater Toronto Area that runs between downtown Toronto and communities to the northeast, including Stouffville.
-
A.
GO Transit Kitchener line
The GO Transit Kitchener line is a regional commuter rail corridor in Southern Ontario that connects Toronto with communities to the west, including Kitchener and Waterloo.
-
B.
GO Transit Barrie line
The GO Transit Barrie line is a commuter rail service in the Greater Toronto Area that connects downtown Toronto with communities to the north, including the city of Barrie.
-
C.
GO Transit Lakeshore East line
The GO Transit Lakeshore East line is a commuter rail corridor in the Greater Toronto Area that runs eastward from Toronto’s Union Station through suburban communities toward Oshawa.
-
D.
GO Transit
GO Transit is a regional public transit system in Southern Ontario, Canada, providing commuter rail and bus services connecting Toronto with surrounding municipalities.
-
E.
GO Transit Lakeshore West line
The GO Transit Lakeshore West line is a commuter rail corridor in Southern Ontario that runs westward from Toronto’s Union Station through cities along the shore of Lake Ontario to Hamilton and Niagara Falls.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
GO Transit rail line
ⓘ
commuter rail line ⓘ |
| category |
GO Transit rail lines
ⓘ
linked to:
GO Transit
Rail transport in the Greater Toronto Area ⓘ |
| connects |
downtown Toronto
ⓘ
northeastern Greater Toronto communities ⓘ |
| connectsWith |
TTC Line 2 Bloor–Danforth at Danforth GO Station
ⓘ
linked to:
Line 2 Bloor–Danforth
TTC Line 2 Bloor–Danforth at Main Street station via Danforth GO ⓘ
linked to:
Line 2 Bloor–Danforth
TTC Line 3 replacement bus services at Kennedy ⓘ VIA Rail services at Union Station ⓘ
linked to:
Via Rail
|
| electrification | not electrified (as of mid-2020s) ⓘ |
| fareIntegrationWith |
Toronto Transit Commission
ⓘ
York Region Transit ⓘ |
| fareSystem | PRESTO card accepted ⓘ |
| hasServiceType |
off-peak service
ⓘ
peak-period service ⓘ |
| hasStation |
Agincourt GO Station
ⓘ
Centennial GO Station ⓘ Danforth GO Station ⓘ Eglinton GO Station ⓘ Kennedy GO Station ⓘ Markham GO Station ⓘ Milliken GO Station ⓘ Mount Joy GO Station ⓘ Old Elm GO Station ⓘ Scarborough GO Station ⓘ Stouffville GO Station ⓘ Union Station (Toronto) ⓘ
linked to:
Union Station, Toronto
Unionville GO Station ⓘ |
| historicalOrigin | former Canadian National Railway corridor ⓘ |
| locatedIn |
Canada
ⓘ
Greater Toronto Area ⓘ Ontario ⓘ |
| openedAsGOService | 20th century (GO Transit era) ⓘ |
| operator | GO Transit ⓘ |
| owner | Metrolinx ⓘ |
| partOf |
GO Transit network
ⓘ
linked to:
GO Transit
|
| plannedUpgrade |
future electrification under GO Expansion program
ⓘ
increased service frequency under GO Expansion program ⓘ |
| primaryUse | commuter service ⓘ |
| serves |
City of Toronto
ⓘ
linked to:
Toronto
Markham ⓘ
linked to:
Markham, Ontario
Stouffville ⓘ Whitchurch-Stouffville ⓘ
linked to:
Whitchurch-Stouffville, Ontario
York Region ⓘ
linked to:
York Region, Ontario
|
| terminus |
Old Elm GO Station
ⓘ
Union Station (Toronto) ⓘ
linked to:
Union Station, Toronto
|
| trackGauge | standard gauge ⓘ |
| usesRollingStock |
bi-level commuter rail coaches
ⓘ
diesel locomotives ⓘ |
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: GO Transit Stouffville line Description of subject: The GO Transit Stouffville line is a commuter rail line in the Greater Toronto Area that runs between downtown Toronto and communities to the northeast, including Stouffville.
Referenced by (9)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Union Station
linked to: GO Transit Stouffville line
linked to: GO Transit Stouffville line
linked to: GO Transit Stouffville line