Afon Mawddach
E899170
Afon Mawddach is a river in Gwynedd, Wales, known for its scenic estuary near Barmouth and its historical significance to the surrounding valleys and settlements.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Afon Mawddach canonical | 3 |
| Mawddach river system | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T10735507 — 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: Afon Mawddach Context triple: [Cymer Abbey, locatedOnWatercourse, Afon Mawddach]
-
A.
Afon Dwyfor
Afon Dwyfor is a river in Gwynedd, Wales, that flows through the village of Llanystumdwy before reaching the sea near Criccieth.
-
B.
Afon Taf
Afon Taf is a river in southwest Wales that flows through Carmarthenshire before reaching the sea at Carmarthen Bay.
-
C.
Afon Ogwen
Afon Ogwen is a river in Snowdonia, north Wales, known for flowing from the Ogwen Valley past Llyn Ogwen towards the sea near Bangor.
-
D.
Afon Crawnon
Afon Crawnon is a small river in Powys, Wales, that flows through the Brecon Beacons to join the River Usk.
-
E.
Afon Ogwr
Afon Ogwr is a river in South Wales that flows through Bridgend County Borough 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: Afon Mawddach Target entity description: Afon Mawddach is a river in Gwynedd, Wales, known for its scenic estuary near Barmouth and its historical significance to the surrounding valleys and settlements.
-
A.
Afon Dwyfor
Afon Dwyfor is a river in Gwynedd, Wales, that flows through the village of Llanystumdwy before reaching the sea near Criccieth.
-
B.
Afon Taf
Afon Taf is a river in southwest Wales that flows through Carmarthenshire before reaching the sea at Carmarthen Bay.
-
C.
Afon Ogwen
Afon Ogwen is a river in Snowdonia, north Wales, known for flowing from the Ogwen Valley past Llyn Ogwen towards the sea near Bangor.
-
D.
Afon Crawnon
Afon Crawnon is a small river in Powys, Wales, that flows through the Brecon Beacons to join the River Usk.
-
E.
Afon Ogwr
Afon Ogwr is a river in South Wales that flows through Bridgend County Borough before reaching the Bristol Channel.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf | river ⓘ |
| country | Wales ⓘ |
| crossedBy | Barmouth Bridge NERFINISHED ⓘ |
| drainageBasin | Cardigan Bay basin NERFINISHED ⓘ |
| flowsInto | Cardigan Bay NERFINISHED ⓘ |
| hasBridge | Barmouth Bridge NERFINISHED ⓘ |
| hasEcosystemType |
estuarine habitat
ⓘ
upland river habitat ⓘ |
| hasEstuaryNear | Barmouth NERFINISHED ⓘ |
| hasNearbyTown |
Barmouth
NERFINISHED
ⓘ
Dolgellau NERFINISHED ⓘ |
| hasNearbyVillage | Penmaenpool NERFINISHED ⓘ |
| hasRailwayPath | Mawddach Trail NERFINISHED ⓘ |
| hasScenicViewpoint |
Barmouth Bridge
NERFINISHED
ⓘ
Penmaenpool NERFINISHED ⓘ |
| hasStructureOn | Penmaenpool toll bridge NERFINISHED ⓘ |
| hasValley | Mawddach Valley NERFINISHED ⓘ |
| hasWalkingRouteAlong | Mawddach Trail NERFINISHED ⓘ |
| historicalSignificanceFor |
Barmouth
NERFINISHED
ⓘ
Dolgellau NERFINISHED ⓘ Mawddach Valley settlements NERFINISHED ⓘ |
| knownFor |
cycling routes
ⓘ
scenic estuary ⓘ scenic valley ⓘ tourism ⓘ walking routes ⓘ |
| languageOfName | Welsh ⓘ |
| locatedIn |
Gwynedd
NERFINISHED
ⓘ
North Wales NERFINISHED ⓘ United Kingdom ⓘ |
| mouthLocatedIn | Cardigan Bay NERFINISHED ⓘ |
| nameElementMeaning | "Afon" means "river" in Welsh ⓘ |
| near | Cadair Idris NERFINISHED ⓘ |
| partOf |
Mawddach estuary
NERFINISHED
ⓘ
Welsh river network ⓘ |
| passesNear | Dolgellau NERFINISHED ⓘ |
| region | Meirionnydd NERFINISHED ⓘ |
| sourceRegion |
Eryri National Park
NERFINISHED
ⓘ
Snowdonia NERFINISHED ⓘ |
| tributary |
Afon Cwm Mynach
NERFINISHED
ⓘ
Afon Eden NERFINISHED ⓘ Afon Gamlan NERFINISHED ⓘ Afon Wnion NERFINISHED ⓘ |
| usedFor |
angling
ⓘ
boating ⓘ recreation ⓘ |
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: Afon Mawddach Description of subject: Afon Mawddach is a river in Gwynedd, Wales, known for its scenic estuary near Barmouth and its historical significance to the surrounding valleys and settlements.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Cymer Abbey
this entity surface form:
Mawddach river system
this entity surface form:
Mawddach river system