River Dyfi
E101157
The River Dyfi is a river in mid Wales that flows from the Cambrian Mountains to Cardigan Bay, forming part of the boundary between the historic counties of Montgomeryshire and Merionethshire.
All labels observed (3)
| Label | Occurrences |
|---|---|
| River Dyfi canonical | 8 |
| Afon Dyfi | 1 |
| River Dyfi (partly) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T697056 — 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: River Dyfi Context triple: [Montgomeryshire, containsRiver, River Dyfi]
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A.
River Dwyryd
River Dwyryd is a river in Gwynedd, Wales, that flows through Snowdonia to reach the estuary near Porthmadog on the west coast.
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B.
River Dysynni
River Dysynni is a river in Gwynedd, Wales, known for flowing through the Dysynni Valley and into Cardigan Bay near Tywyn.
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C.
River Cleddau
The River Cleddau is a river system in Pembrokeshire, Wales, whose Eastern and Western branches meet to form the Milford Haven Waterway before reaching the Irish Sea.
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D.
River Wye
The River Wye is a major river in Wales and western England, renowned for its scenic valley landscapes and importance as a wildlife and recreational area.
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E.
River Taff
The River Taff is a major river in South Wales that flows through Merthyr Tydfil and Cardiff before reaching the Bristol Channel.
- 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: River Dyfi Target entity description: The River Dyfi is a river in mid Wales that flows from the Cambrian Mountains to Cardigan Bay, forming part of the boundary between the historic counties of Montgomeryshire and Merionethshire.
-
A.
River Dwyryd
River Dwyryd is a river in Gwynedd, Wales, that flows through Snowdonia to reach the estuary near Porthmadog on the west coast.
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B.
River Dysynni
River Dysynni is a river in Gwynedd, Wales, known for flowing through the Dysynni Valley and into Cardigan Bay near Tywyn.
-
C.
River Cleddau
The River Cleddau is a river system in Pembrokeshire, Wales, whose Eastern and Western branches meet to form the Milford Haven Waterway before reaching the Irish Sea.
-
D.
River Wye
The River Wye is a major river in Wales and western England, renowned for its scenic valley landscapes and importance as a wildlife and recreational area.
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E.
River Taff
The River Taff is a major river in South Wales that flows through Merthyr Tydfil and Cardiff before reaching the Bristol Channel.
- F. None of above. chosen
Statements (37)
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: River Dyfi Description of subject: The River Dyfi is a river in mid Wales that flows from the Cambrian Mountains to Cardigan Bay, forming part of the boundary between the historic counties of Montgomeryshire and Merionethshire.
Referenced by (10)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
River Dyfi (partly)
this entity surface form:
Afon Dyfi