A3 London–Portsmouth route
E458030
The A3 London–Portsmouth route is a major trunk road in southern England linking the capital with the port city of Portsmouth.
All labels observed (2)
| Label | Occurrences |
|---|---|
| A3 London–Portsmouth route canonical | 1 |
| former A3 London–Portsmouth road | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4659760 — 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: A3 London–Portsmouth route Context triple: [Hindhead Tunnel, partOf, A3 London–Portsmouth route]
-
A.
London–Bristol route
The London–Bristol route is a major intercity rail corridor in England linking the capital with the city of Bristol and serving as a key artery for passenger and freight traffic in the west of the country.
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B.
Anglia Route
Anglia Route is a major rail network area in eastern England that encompasses key passenger and freight lines, including the West Anglia Main Line, managed as part of the region’s railway infrastructure.
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C.
Bristol–Bath line
The Bristol–Bath line is a key railway route in southwest England that connects the cities of Bristol and Bath, forming part of the Great Western Main Line network.
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D.
Brighton to Portsmouth line
The Brighton to Portsmouth line is a coastal railway route in southern England linking the city of Brighton with Portsmouth via several intermediate towns and stations.
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E.
London Paddington–Swansea route
The London Paddington–Swansea route is a major intercity railway line in Great Britain linking London with South Wales, serving key cities such as Reading, Bristol (via connecting routes), Cardiff, and Swansea.
- 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: A3 London–Portsmouth route Target entity description: The A3 London–Portsmouth route is a major trunk road in southern England linking the capital with the port city of Portsmouth.
-
A.
London–Bristol route
The London–Bristol route is a major intercity rail corridor in England linking the capital with the city of Bristol and serving as a key artery for passenger and freight traffic in the west of the country.
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B.
Southampton–Bournemouth line
The Southampton–Bournemouth line is a key railway route on England’s south coast linking the cities of Southampton and Bournemouth and forming part of the wider South West Main Line network.
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C.
Anglia Route
Anglia Route is a major rail network area in eastern England that encompasses key passenger and freight lines, including the West Anglia Main Line, managed as part of the region’s railway infrastructure.
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D.
Bristol–Bath line
The Bristol–Bath line is a key railway route in southwest England that connects the cities of Bristol and Bath, forming part of the Great Western Main Line network.
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E.
Brighton to Portsmouth line
The Brighton to Portsmouth line is a coastal railway route in southern England linking the city of Brighton with Portsmouth via several intermediate towns and stations.
- F. None of above. chosen
Statements (28)
| Predicate | Object |
|---|---|
| instanceOf |
road in England
ⓘ
trunk road ⓘ |
| connects |
London
NERFINISHED
ⓘ
Portsmouth NERFINISHED ⓘ |
| connectsToPort | Portsmouth International Port NERFINISHED ⓘ |
| country | England ⓘ |
| designation | primary route ⓘ |
| function | links the capital with the port city of Portsmouth ⓘ |
| hasJunctionWith |
A27 road
NERFINISHED
ⓘ
A31 road NERFINISHED ⓘ M25 motorway NERFINISHED ⓘ |
| importance | major strategic route between London and the south coast ⓘ |
| locatedIn | southern England ⓘ |
| maintainedBy | National Highways ⓘ |
| partOf |
British road network
ⓘ
London to south coast corridor ⓘ |
| passesThrough |
Hampshire
NERFINISHED
ⓘ
Surrey NERFINISHED ⓘ |
| regionServed |
London
NERFINISHED
ⓘ
Portsmouth NERFINISHED ⓘ South East England NERFINISHED ⓘ |
| roadNumber | A3 NERFINISHED ⓘ |
| roadType | dual carriageway (in substantial sections) ⓘ |
| terminusA | London NERFINISHED ⓘ |
| terminusB | Portsmouth NERFINISHED ⓘ |
| usedFor |
commuter traffic
ⓘ
freight transport ⓘ long-distance 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: A3 London–Portsmouth route Description of subject: The A3 London–Portsmouth route is a major trunk road in southern England linking the capital with the port city of Portsmouth.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
former A3 London–Portsmouth road