River Ebbw
E474427
River Ebbw is a river in south-east Wales that flows through former industrial valleys of Gwent before joining the River Usk near Newport.
All labels observed (5)
| Label | Occurrences |
|---|---|
| River Ebbw canonical | 6 |
| Ebbw River | 2 |
| Ebbw Fach River | 1 |
| River Ebbw Fach | 1 |
| River Usk (via River Ebbw) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4644593 — 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 Ebbw Context triple: [Gwent, hasRiver, River Ebbw]
-
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.
-
B.
Rhymney River
The Rhymney River is a river in South Wales that flows through the city of Cardiff before reaching the Bristol Channel.
-
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 Ystwyth
River Ystwyth is a river in west Wales that flows through Ceredigion to the coastal town of Aberystwyth, where it meets the sea.
-
E.
River Afan
River Afan is a river in South Wales that flows through the town of Port Talbot before reaching Swansea Bay.
- 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 Ebbw Target entity description: River Ebbw is a river in south-east Wales that flows through former industrial valleys of Gwent before joining the River Usk near Newport.
-
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.
-
B.
Rhymney River
The Rhymney River is a river in South Wales that flows through the city of Cardiff before reaching the Bristol Channel.
-
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 Ystwyth
River Ystwyth is a river in west Wales that flows through Ceredigion to the coastal town of Aberystwyth, where it meets the sea.
-
E.
River Afan
River Afan is a river in South Wales that flows through the town of Port Talbot before reaching Swansea Bay.
- F. None of above. chosen
Statements (20)
| Predicate | Object |
|---|---|
| instanceOf | river ⓘ |
| confluenceNear | Newport NERFINISHED ⓘ |
| country | Wales ⓘ |
| flowsThrough |
Crosskeys
NERFINISHED
ⓘ
Cwmbran area ⓘ Ebbw Vale NERFINISHED ⓘ Newport NERFINISHED ⓘ Risca NERFINISHED ⓘ former industrial valleys of Gwent ⓘ |
| hasTributary |
Ebbw Fach
NERFINISHED
ⓘ
Sirhowy River NERFINISHED ⓘ |
| joins | River Usk NERFINISHED ⓘ |
| locatedIn |
Gwent
NERFINISHED
ⓘ
south Wales Valleys NERFINISHED ⓘ south-east Wales NERFINISHED ⓘ |
| mouthOfWatercourse | River Usk NERFINISHED ⓘ |
| partOf | River Usk catchment ⓘ |
| region |
Blaenau Gwent
NERFINISHED
ⓘ
Caerphilly County Borough NERFINISHED ⓘ Newport (city) NERFINISHED ⓘ |
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 Ebbw Description of subject: River Ebbw is a river in south-east Wales that flows through former industrial valleys of Gwent before joining the River Usk near Newport.
Referenced by (11)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: River Ebbw
linked to: River Ebbw
linked to: River Ebbw