A18 motorway (Portugal)
E563252
The A18 motorway in Portugal is a regional highway that forms part of the country’s national road network, providing a fast connection between inland urban areas and major routes.
All labels observed (1)
| Label | Occurrences |
|---|---|
| A18 motorway (Portugal) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5530650 — 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: A18 motorway (Portugal) Context triple: [Portuguese national road network, hasComponent, A18 motorway (Portugal)]
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A.
A15 motorway (Portugal)
The A15 motorway in Portugal is a key highway linking the coastal city of Caldas da Rainha to the interior city of Santarém, improving regional connectivity between the A8 and A1 motorways.
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B.
A14 motorway (Portugal)
The A14 motorway in Portugal is a key highway linking the coastal city of Figueira da Foz to Coimbra and the A1, facilitating regional and long-distance traffic in the central part of the country.
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C.
A17 motorway (Portugal)
The A17 motorway in Portugal is a major north–south coastal highway linking the Aveiro and Leiria regions and serving as an important route for traffic along the country’s western seaboard.
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D.
A11 motorway (Portugal)
The A11 motorway in Portugal is a key east–west highway in the north of the country, linking coastal cities like Esposende and Braga to inland areas and facilitating regional mobility and economic activity.
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E.
A1 motorway (Portugal)
The A1 motorway in Portugal is the country’s main north–south highway, linking Lisbon to Porto and serving as a key backbone of national road transport.
- 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: A18 motorway (Portugal) Target entity description: The A18 motorway in Portugal is a regional highway that forms part of the country’s national road network, providing a fast connection between inland urban areas and major routes.
-
A.
A15 motorway (Portugal)
The A15 motorway in Portugal is a key highway linking the coastal city of Caldas da Rainha to the interior city of Santarém, improving regional connectivity between the A8 and A1 motorways.
-
B.
A14 motorway (Portugal)
The A14 motorway in Portugal is a key highway linking the coastal city of Figueira da Foz to Coimbra and the A1, facilitating regional and long-distance traffic in the central part of the country.
-
C.
A17 motorway (Portugal)
The A17 motorway in Portugal is a major north–south coastal highway linking the Aveiro and Leiria regions and serving as an important route for traffic along the country’s western seaboard.
-
D.
A11 motorway (Portugal)
The A11 motorway in Portugal is a key east–west highway in the north of the country, linking coastal cities like Esposende and Braga to inland areas and facilitating regional mobility and economic activity.
-
E.
A1 motorway (Portugal)
The A1 motorway in Portugal is the country’s main north–south highway, linking Lisbon to Porto and serving as a key backbone of national road transport.
- F. None of above. chosen
Statements (15)
| Predicate | Object |
|---|---|
| instanceOf |
motorway
ⓘ
road in Portugal ⓘ |
| connects |
inland urban areas in Portugal
ⓘ
major routes in the Portuguese road network ⓘ |
| country | Portugal ⓘ |
| function | regional highway ⓘ |
| hasAccessControl | controlled-access road ⓘ |
| isPartOf | Portuguese motorway system NERFINISHED ⓘ |
| locatedIn | mainland Portugal ⓘ |
| networkRole | provides fast connection between inland areas and major routes ⓘ |
| partOf | Portuguese national road network NERFINISHED ⓘ |
| roadNumber | A18 NERFINISHED ⓘ |
| roadType | A-class motorway ⓘ |
| transportMode | road transport ⓘ |
| use | motor vehicle traffic ⓘ |
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: A18 motorway (Portugal) Description of subject: The A18 motorway in Portugal is a regional highway that forms part of the country’s national road network, providing a fast connection between inland urban areas and major routes.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.