Highway 400
E38446
Highway 400 is a major controlled-access freeway in Ontario, Canada, forming a key north–south route connecting the Greater Toronto Area to central and northern parts of the province.
All labels observed (8)
| Label | Occurrences |
|---|---|
| Highway 400 canonical | 31 |
| Highway 400 corridor | 2 |
| Highway 400 (Ontario) | 1 |
| Highway 400 (nearby) | 1 |
| Highway 400 at Parry Sound | 1 |
| Hwy 400 | 1 |
| Ontario 400-series highways | 1 |
| Ontario Highway 400 (nearby) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T296761 — 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: Highway 400 Context triple: [Woodbridge, Ontario, nearHighway, Highway 400]
-
A.
Interstate 90
Interstate 90 is the longest Interstate Highway in the United States, running east–west from Seattle, Washington, to Boston, Massachusetts.
-
B.
Shirley Highway
Shirley Highway is a major freeway in Northern Virginia that forms part of the primary commuter route between the suburbs and Washington, D.C.
-
C.
Generals Highway
Generals Highway is a scenic mountain road in California that winds through Sequoia and Kings Canyon National Parks, providing access to giant sequoia groves and major park attractions.
-
D.
Long Island Expressway
The Long Island Expressway is a major east–west highway in New York that serves as the primary transportation artery across Long Island, connecting it to New York City and numerous suburban communities.
-
E.
Newell Highway
Newell Highway is a major inland highway in New South Wales, Australia, forming a key north–south freight and transport route through regions including the Riverina.
- 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: Highway 400 Target entity description: Highway 400 is a major controlled-access freeway in Ontario, Canada, forming a key north–south route connecting the Greater Toronto Area to central and northern parts of the province.
-
A.
Interstate 90
Interstate 90 is the longest Interstate Highway in the United States, running east–west from Seattle, Washington, to Boston, Massachusetts.
-
B.
Shirley Highway
Shirley Highway is a major freeway in Northern Virginia that forms part of the primary commuter route between the suburbs and Washington, D.C.
-
C.
Generals Highway
Generals Highway is a scenic mountain road in California that winds through Sequoia and Kings Canyon National Parks, providing access to giant sequoia groves and major park attractions.
-
D.
Long Island Expressway
The Long Island Expressway is a major east–west highway in New York that serves as the primary transportation artery across Long Island, connecting it to New York City and numerous suburban communities.
-
E.
Newell Highway
Newell Highway is a major inland highway in New South Wales, Australia, forming a key north–south freight and transport route through regions including the Riverina.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
controlled-access highway
ⓘ
freeway ⓘ provincial highway ⓘ |
| abbreviation |
Highway 400
self-linksurface differs
ⓘ
surface form:
Hwy 400
|
| accessControl | full access control ⓘ |
| connects |
Greater Toronto Area
ⓘ
Central Ontario ⓘ
surface form:
central Ontario
Northern Ontario ⓘ
surface form:
northern Ontario
|
| country | Canada ⓘ |
| directionA | South ⓘ |
| directionB | North ⓘ |
| function | major north–south transportation corridor ⓘ |
| hasJunctionWith |
Highway 11
ⓘ
Highway 401 ⓘ Highway 407 ETR ⓘ Highway 7 ⓘ Highway 89 ⓘ Highway 9 ⓘ |
| highwaySystem |
Highway 400
self-linksurface differs
ⓘ
surface form:
Ontario 400-series highways
|
| laneConfiguration | multi-lane divided highway ⓘ |
| locatedIn | Ontario ⓘ |
| maintainedBy |
Ministry of Transportation (Ontario)
ⓘ
surface form:
Ministry of Transportation of Ontario
|
| northernTerminus | Highway 11 near Crown Hill ⓘ |
| northernTerminusNear | Barrie ⓘ |
| notableFor |
heavy traffic volumes near Toronto
ⓘ
key route to cottage country in Ontario ⓘ |
| openedAsFreeway | 20th century ⓘ |
| partOf |
Trans-Canada Highway
ⓘ
surface form:
Trans-Canada Highway network (via Highway 11 connection)
|
| passesThrough |
Barrie
ⓘ
Bradford West Gwillimbury ⓘ Innisfil ⓘ King ⓘ Springwater ⓘ Toronto ⓘ Vaughan ⓘ |
| primaryUse |
commercial freight traffic
ⓘ
commuter traffic ⓘ long-distance travel ⓘ |
| regionServed |
Central Ontario
ⓘ
Greater Toronto Area ⓘ Northern Ontario ⓘ |
| routeNumber | 400 ⓘ |
| servesCorridor | Toronto–Barrie corridor ⓘ |
| southernTerminus |
Highway 401
ⓘ
surface form:
Highway 401 in Toronto
|
| southernTerminusCity | Toronto ⓘ |
| speedLimit | 100 km/h (typical posted limit on most rural sections) ⓘ |
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: Highway 400 Description of subject: Highway 400 is a major controlled-access freeway in Ontario, Canada, forming a key north–south route connecting the Greater Toronto Area to central and northern parts of the province.
Referenced by (39)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Woodbridge, Ontario
subject surface form:
Maple, Ontario
this entity surface form:
Highway 400 (nearby)
this entity surface form:
Hwy 400
this entity surface form:
Ontario 400-series highways
this entity surface form:
Ontario Highway 400 (nearby)
this entity surface form:
Highway 400 corridor
this entity surface form:
Highway 400 corridor
subject surface form:
Woodbridge, Ontario
this entity surface form:
Highway 400 (Ontario)
this entity surface form:
Highway 400 at Parry Sound