Highway 409
E935435
Highway 409 is a short Ontario 400-series highway in the Greater Toronto Area that primarily serves as a connector between Highway 401 and Toronto Pearson International Airport.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Highway 409 canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T1771698 — 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 409 Context triple: [Highway 427, connectsTo, Highway 409]
-
A.
Highway 410
Highway 410 is a major controlled-access freeway in Ontario, Canada, that connects the city of Mississauga to Brampton and links to other key routes in the Greater Toronto Area.
-
B.
National Highway 48
National Highway 48 is a major Indian roadway that forms part of the primary north–south transport corridor, linking key cities such as Delhi, Jaipur, Ahmedabad, Mumbai, and Bengaluru.
-
C.
Highway 90
Highway 90 is a major north–south Israeli highway running the length of the country from the Lebanese border down through the Jordan Valley to Eilat.
-
D.
Highway 108
Highway 108 is a scenic mountain route in California that crosses the Sierra Nevada via Sonora Pass, one of the highest paved passes in the state.
-
E.
Highway 89
Highway 89 is a provincial highway in Ontario, Canada, that serves as a key east–west route connecting several communities in the south-central part of the province.
- 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 409 Target entity description: Highway 409 is a short Ontario 400-series highway in the Greater Toronto Area that primarily serves as a connector between Highway 401 and Toronto Pearson International Airport.
-
A.
Highway 410
Highway 410 is a major controlled-access freeway in Ontario, Canada, that connects the city of Mississauga to Brampton and links to other key routes in the Greater Toronto Area.
-
B.
National Highway 48
National Highway 48 is a major Indian roadway that forms part of the primary north–south transport corridor, linking key cities such as Delhi, Jaipur, Ahmedabad, Mumbai, and Bengaluru.
-
C.
Highway 90
Highway 90 is a major north–south Israeli highway running the length of the country from the Lebanese border down through the Jordan Valley to Eilat.
-
D.
Highway 108
Highway 108 is a scenic mountain route in California that crosses the Sierra Nevada via Sonora Pass, one of the highest paved passes in the state.
-
E.
Highway 89
Highway 89 is a provincial highway in Ontario, Canada, that serves as a key east–west route connecting several communities in the south-central part of the province.
- F. None of above. chosen
Statements (29)
| Predicate | Object |
|---|---|
| instanceOf |
Ontario 400-series highway
ⓘ
controlled-access highway ⓘ |
| accessControl | full access control ⓘ |
| connectsTo |
Highway 401
NERFINISHED
ⓘ
Highway 427 NERFINISHED ⓘ Toronto Pearson International Airport NERFINISHED ⓘ |
| country | Canada ⓘ |
| hasDirection | east–west ⓘ |
| hasJunctionWith |
Highway 401
NERFINISHED
ⓘ
Highway 427 NERFINISHED ⓘ |
| hasNumber | 409 ⓘ |
| isShorterThan | many other Ontario 400-series highways ⓘ |
| jurisdiction | Province of Ontario NERFINISHED ⓘ |
| locatedIn |
Greater Toronto Area
ⓘ
Ontario ⓘ |
| locatedNear |
Etobicoke
NERFINISHED
ⓘ
Malton NERFINISHED ⓘ |
| maintainedBy | Ministry of Transportation of Ontario NERFINISHED ⓘ |
| partOf |
Ontario 400-series highway network
NERFINISHED
ⓘ
provincial highway system of Ontario ⓘ |
| primaryFunction |
airport connector
ⓘ
bypass route for Highway 401 near Toronto Pearson International Airport ⓘ |
| regionServed |
City of Mississauga
NERFINISHED
ⓘ
City of Toronto NERFINISHED ⓘ |
| roadType | freeway ⓘ |
| serves | Toronto Pearson International Airport NERFINISHED ⓘ |
| servesAs | connector between Highway 401 and Toronto Pearson International Airport ⓘ |
| terminusEast | Highway 401 NERFINISHED ⓘ |
| terminusWest | Toronto Pearson International Airport area NERFINISHED ⓘ |
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 409 Description of subject: Highway 409 is a short Ontario 400-series highway in the Greater Toronto Area that primarily serves as a connector between Highway 401 and Toronto Pearson International Airport.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.