A487 road
E56319
The A487 road is a major trunk route in Wales that runs along the west coast, connecting several key towns and serving as an important link through Gwynedd and Ceredigion.
All labels observed (1)
| Label | Occurrences |
|---|---|
| A487 road canonical | 6 |
How this entity was disambiguated
This entity first appeared as the object of triple T445983 — 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: A487 road Context triple: [Penrhyndeudraeth, locatedOnTransportRoute, A487 road]
-
A.
A470 road
The A470 road is a major north–south trunk route in Wales that runs from Cardiff to Llandudno, connecting many of the country’s key towns and regions.
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B.
A47 road
The A47 road is a major east–west route in England that connects Birmingham to the east coast, including the town of Great Yarmouth.
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C.
A49 road
The A49 road is a major north–south route in western England, running between Ross-on-Wye in Herefordshire and Bamber Bridge near Preston, and serving as an important link through the Welsh Marches.
-
D.
A46 road
The A46 road is a major trunk route in England running from Bath in the southwest to Cleethorpes on the east coast, linking several key cities and intersecting with numerous primary roads.
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E.
A44 road
The A44 road is a major route in England that runs from Oxford through the Cotswolds and Worcestershire to Aberystwyth in Wales.
- 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: A487 road Target entity description: The A487 road is a major trunk route in Wales that runs along the west coast, connecting several key towns and serving as an important link through Gwynedd and Ceredigion.
-
A.
A470 road
The A470 road is a major north–south trunk route in Wales that runs from Cardiff to Llandudno, connecting many of the country’s key towns and regions.
-
B.
A47 road
The A47 road is a major east–west route in England that connects Birmingham to the east coast, including the town of Great Yarmouth.
-
C.
A49 road
The A49 road is a major north–south route in western England, running between Ross-on-Wye in Herefordshire and Bamber Bridge near Preston, and serving as an important link through the Welsh Marches.
-
D.
A46 road
The A46 road is a major trunk route in England running from Bath in the southwest to Cleethorpes on the east coast, linking several key cities and intersecting with numerous primary roads.
-
E.
A44 road
The A44 road is a major route in England that runs from Oxford through the Cotswolds and Worcestershire to Aberystwyth in Wales.
- F. None of above. chosen
Statements (29)
| Predicate | Object |
|---|---|
| instanceOf |
A road in Great Britain
ⓘ
road ⓘ trunk road ⓘ |
| connects |
Ceredigion
ⓘ
Gwynedd ⓘ several key towns in west Wales ⓘ |
| country | Wales ⓘ |
| hasJunctionWith | other A-class roads in Wales ⓘ |
| hasRouteType |
primary route (in sections)
ⓘ
trunk route (in sections) ⓘ |
| highwaySystem | Great Britain A roads ⓘ |
| importance | major coastal link in west Wales ⓘ |
| locatedIn |
Wales
ⓘ
west coast of Wales ⓘ |
| locatedInAdministrativeTerritory |
Ceredigion
ⓘ
Gwynedd ⓘ |
| maintainedBy | Welsh Government ⓘ |
| partOf | Welsh trunk road network ⓘ |
| passesThrough |
Mid Wales
ⓘ
surface form:
mid Wales
North Wales ⓘ
surface form:
north-west Wales
|
| regionServed |
mid Wales
ⓘ
North Wales ⓘ
surface form:
north-west Wales
west Wales ⓘ |
| roadNumber | A487 ⓘ |
| roadType | single carriageway (in large parts) ⓘ |
| role | important link between communities in Gwynedd and Ceredigion ⓘ |
| runsAlong | west coast of Wales ⓘ |
| usedFor |
long-distance travel in west Wales
ⓘ
regional 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: A487 road Description of subject: The A487 road is a major trunk route in Wales that runs along the west coast, connecting several key towns and serving as an important link through Gwynedd and Ceredigion.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.