River Irfon
E329020
River Irfon is a scenic river in mid-Wales known for flowing through the Cambrian Mountains and joining the River Wye near Builth Wells.
All labels observed (1)
| Label | Occurrences |
|---|---|
| River Irfon canonical | 5 |
How this entity was disambiguated
This entity first appeared as the object of triple T2512150 — 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 Irfon Context triple: [River Wye, hasTributary, River Irfon]
-
A.
River Teifi
The River Teifi is a major river in west Wales known for its scenic valley, rich wildlife, and traditional coracle fishing.
-
B.
River Rheidol
The River Rheidol is a river in Ceredigion, Wales, known for flowing through steep wooded valleys to the coastal town of Aberystwyth and lending its name to the historic Vale of Rheidol Railway.
-
C.
River Afan
River Afan is a river in South Wales that flows through the town of Port Talbot before reaching Swansea Bay.
-
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.
-
E.
River Wye
The River Wye is a picturesque river in the Peak District of England, known for flowing through limestone dales and scenic countryside popular with walkers and anglers.
- 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 Irfon Target entity description: River Irfon is a scenic river in mid-Wales known for flowing through the Cambrian Mountains and joining the River Wye near Builth Wells.
-
A.
River Teifi
The River Teifi is a major river in west Wales known for its scenic valley, rich wildlife, and traditional coracle fishing.
-
B.
River Rheidol
The River Rheidol is a river in Ceredigion, Wales, known for flowing through steep wooded valleys to the coastal town of Aberystwyth and lending its name to the historic Vale of Rheidol Railway.
-
C.
River Afan
River Afan is a river in South Wales that flows through the town of Port Talbot before reaching Swansea Bay.
-
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.
-
E.
River Wye
The River Wye is a picturesque river in the Peak District of England, known for flowing through limestone dales and scenic countryside popular with walkers and anglers.
- F. None of above. chosen
Statements (32)
| Predicate | Object |
|---|---|
| instanceOf | river ⓘ |
| confluenceNear | Builth Wells ⓘ |
| country | Wales ⓘ |
| flowsInto |
River Wye near Builth Wells
ⓘ
linked to:
River Wye
|
| flowsThrough |
Abergwesyn
ⓘ
Irfon Valley ⓘ Llanwrtyd Wells area ⓘ
linked to:
Llanwrtyd Wells
Powys ⓘ |
| hasBridge | Abergwesyn Bridge ⓘ |
| hasEcosystemType |
moorland stream
ⓘ
upland river ⓘ |
| hasNearbyProtectedArea | Cambrian Mountains Environmentally Sensitive Area ⓘ |
| hasNearbySettlement |
Builth Wells
ⓘ
Llanwrtyd Wells ⓘ |
| hasNotableSection | Abergwesyn Pass area ⓘ |
| hasTourismActivity |
hiking
ⓘ
wildlife watching ⓘ |
| hasValley | Irfon Valley ⓘ |
| isTributaryOf | River Wye ⓘ |
| knownFor |
fishing
ⓘ
scenic beauty ⓘ walking routes ⓘ |
| locatedIn |
Brecon Beacons area
ⓘ
linked to:
Brecon Beacons in Wales
Mid Wales ⓘ United Kingdom ⓘ |
| mouthOfWatercourse | River Wye ⓘ |
| partOf | Wye river system ⓘ |
| sourceLocation | Cambrian Mountains ⓘ |
| usedFor |
angling
ⓘ
kayaking ⓘ recreation ⓘ |
| waterBodyType | freshwater 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 Irfon Description of subject: River Irfon is a scenic river in mid-Wales known for flowing through the Cambrian Mountains and joining the River Wye near Builth Wells.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.