River Clettwr
E836621
River Clettwr is a small river in west Wales that flows through Ceredigion before joining the River Teifi.
All labels observed (1)
| Label | Occurrences |
|---|---|
| River Clettwr canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9727367 — 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 Clettwr Context triple: [River Teifi, hasTributary, River Clettwr]
-
A.
River Cennen
River Cennen is a small river in Carmarthenshire, Wales, known for flowing past Carreg Cennen Castle before joining the River Tywi.
-
B.
Gwydir River
The Gwydir River is a significant inland river in northern New South Wales, Australia, known for its role in regional irrigation, agriculture, and wetland ecosystems.
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C.
River Twrch
River Twrch is a small river in Wales that flows through rural valleys on the border of Powys and Carmarthenshire before joining the River Tawe.
-
D.
River Tawd
River Tawd is a small river in Lancashire, England, known for flowing through Skelmersdale before joining the River Douglas.
-
E.
River Nadder
The River Nadder is a chalk stream in Wiltshire, England, that flows through the countryside to join the River Avon at Salisbury.
- 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 Clettwr Target entity description: River Clettwr is a small river in west Wales that flows through Ceredigion before joining the River Teifi.
-
A.
River Cennen
River Cennen is a small river in Carmarthenshire, Wales, known for flowing past Carreg Cennen Castle before joining the River Tywi.
-
B.
Gwydir River
The Gwydir River is a significant inland river in northern New South Wales, Australia, known for its role in regional irrigation, agriculture, and wetland ecosystems.
-
C.
River Twrch
River Twrch is a small river in Wales that flows through rural valleys on the border of Powys and Carmarthenshire before joining the River Tawe.
-
D.
River Tawd
River Tawd is a small river in Lancashire, England, known for flowing through Skelmersdale before joining the River Douglas.
-
E.
River Nadder
The River Nadder is a chalk stream in Wiltshire, England, that flows through the countryside to join the River Avon at Salisbury.
- F. None of above. chosen
Statements (15)
| Predicate | Object |
|---|---|
| instanceOf | river ⓘ |
| basinCountry |
United Kingdom
ⓘ
Wales ⓘ |
| country | Wales ⓘ |
| flowsThrough | Ceredigion ⓘ |
| geographicRegion | Ceredigion ⓘ |
| hasMouthPosition | near River Teifi ⓘ |
| hasNameInLanguage | Clettwr (Welsh) ⓘ |
| locatedIn | west Wales ⓘ |
| locatedInAdministrativeTerritory | Ceredigion ⓘ |
| locatedOnContinent | Europe ⓘ |
| mouthOfWatercourse | River Teifi ⓘ |
| partOf | River Teifi drainage basin ⓘ |
| tributaryOf | River Teifi ⓘ |
| watercourseType | small river ⓘ |
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 Clettwr Description of subject: River Clettwr is a small river in west Wales that flows through Ceredigion before joining the River Teifi.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.