A4
E606267
A4 is a major west–east arterial road in London that forms part of the primary route between central London, Heathrow Airport, and the west of England.
All labels observed (1)
| Label | Occurrences |
|---|---|
| A4 canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T6623172 — 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: A4 Context triple: [London Borough of Ealing, hasMajorRoad, A4]
-
A.
A4
A4 is a major French autoroute that connects Paris to the eastern regions of France and onward toward Germany.
-
B.
A4
A4 is a major Swiss motorway that connects the Zurich region with central and northern Switzerland, facilitating both national and international traffic.
-
C.
A5
A5 is a major Italian motorway connecting the city of Turin with the Aosta Valley and the Mont Blanc Tunnel at the French border.
-
D.
A5
The A5 is a major road in the United Kingdom that historically follows the route of the Roman Watling Street, linking London with the Midlands and North Wales.
-
E.
A5
A5 is a major Swiss motorway that connects key regions in the northwest of the country, facilitating traffic between cities such as Solothurn, Biel/Bienne, and Neuchâtel.
- 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: A4 Target entity description: A4 is a major west–east arterial road in London that forms part of the primary route between central London, Heathrow Airport, and the west of England.
-
A.
A4
A4 is a major French autoroute that connects Paris to the eastern regions of France and onward toward Germany.
-
B.
A4
A4 is a major Swiss motorway that connects the Zurich region with central and northern Switzerland, facilitating both national and international traffic.
-
C.
A5
A5 is a major Italian motorway connecting the city of Turin with the Aosta Valley and the Mont Blanc Tunnel at the French border.
-
D.
A5
The A5 is a major road in the United Kingdom that historically follows the route of the Roman Watling Street, linking London with the Midlands and North Wales.
-
E.
A5
A5 is a major Swiss motorway that connects key regions in the northwest of the country, facilitating traffic between cities such as Solothurn, Biel/Bienne, and Neuchâtel.
- F. None of above. chosen
Statements (23)
| Predicate | Object |
|---|---|
| instanceOf |
major road
ⓘ
primary route ⓘ road ⓘ |
| connectsRegion |
London
NERFINISHED
ⓘ
west of England ⓘ |
| connectsTo |
Heathrow Airport
NERFINISHED
ⓘ
central London NERFINISHED ⓘ |
| country | United Kingdom ⓘ |
| formsPartOfRouteBetween |
central London and Heathrow Airport
ⓘ
central London and the west of England ⓘ |
| hasDirection | west–east ⓘ |
| hasImportance |
key access route to Heathrow Airport
ⓘ
strategic route ⓘ |
| hasRoadType | primary route ⓘ |
| hasTransportRole |
major route from London to the west of England
ⓘ
major route to Heathrow Airport ⓘ |
| isInMetropolitanArea | Greater London NERFINISHED ⓘ |
| isPartOf | British A road network ⓘ |
| locatedIn | London NERFINISHED ⓘ |
| orientation |
eastbound
ⓘ
westbound ⓘ |
| roadNumber | A4 ⓘ |
| usedFor | road transport ⓘ |
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: A4 Description of subject: A4 is a major west–east arterial road in London that forms part of the primary route between central London, Heathrow Airport, and the west of England.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Great West Road