River Pelenna
E484111
River Pelenna is a small river in Neath Port Talbot, South Wales, known for flowing through former coal-mining valleys before joining the River Afan.
All labels observed (1)
| Label | Occurrences |
|---|---|
| River Pelenna canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4981587 — 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 Pelenna Context triple: [River Afan, hasTributary, River Pelenna]
-
A.
River Seph
River Seph is a small river flowing through the North York Moors in North Yorkshire, England, contributing to the region’s rural landscape and drainage system.
-
B.
River Corve
River Corve is a small river in Shropshire, England, that flows through rural countryside before joining the River Teme.
-
C.
River Dorn
River Dorn is a small river in Oxfordshire, England, that flows through the Cotswolds and joins the River Glyme near Blenheim Palace.
-
D.
River Onny
River Onny is a river in Shropshire, England, known for flowing through the Shropshire Hills Area of Outstanding Natural Beauty and joining the River Teme near Ludlow.
-
E.
Dragonja River
The Dragonja River is a short coastal river in southwestern Slovenia that forms part of the border with Croatia before emptying into the Adriatic Sea.
- 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 Pelenna Target entity description: River Pelenna is a small river in Neath Port Talbot, South Wales, known for flowing through former coal-mining valleys before joining the River Afan.
-
A.
River Seph
River Seph is a small river flowing through the North York Moors in North Yorkshire, England, contributing to the region’s rural landscape and drainage system.
-
B.
River Corve
River Corve is a small river in Shropshire, England, that flows through rural countryside before joining the River Teme.
-
C.
River Dorn
River Dorn is a small river in Oxfordshire, England, that flows through the Cotswolds and joins the River Glyme near Blenheim Palace.
-
D.
River Onny
River Onny is a river in Shropshire, England, known for flowing through the Shropshire Hills Area of Outstanding Natural Beauty and joining the River Teme near Ludlow.
-
E.
Dragonja River
The Dragonja River is a short coastal river in southwestern Slovenia that forms part of the border with Croatia before emptying into the Adriatic Sea.
- F. None of above. chosen
Statements (31)
| Predicate | Object |
|---|---|
| instanceOf | river ⓘ |
| country |
United Kingdom
ⓘ
Wales ⓘ |
| drainageBasin | Afan Valley ⓘ |
| ecosystemType | upland valley river ⓘ |
| flowsInto | River Afan ⓘ |
| flowsThrough |
Cymmer
ⓘ
Pontrhydyfen area ⓘ valleys north of Cymmer ⓘ |
| hasCharacteristic |
relatively short length
ⓘ
steep-sided valleys ⓘ |
| hasEnvironmentalIssue |
acid mine drainage
ⓘ
metal contamination from abandoned mines ⓘ |
| hasLandUseHistory |
coal mining
ⓘ
industrial activity ⓘ |
| hasTributary |
Nant y Bryn
ⓘ
Nant y Glo ⓘ |
| knownFor |
flowing through former coal-mining valleys
ⓘ
historic coal mining pollution ⓘ |
| locatedIn |
Neath Port Talbot
ⓘ
South Wales ⓘ Wales ⓘ |
| locatedNear |
Neath
ⓘ
Port Talbot ⓘ |
| mouthOfWatercourse | River Afan ⓘ |
| partOf |
Afan catchment
ⓘ
hydrology of Neath Port Talbot ⓘ |
| region |
West Glamorgan (historic county)
ⓘ
linked to:
West Glamorgan
|
| subjectOf |
river restoration projects
ⓘ
water quality monitoring ⓘ |
| 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 Pelenna Description of subject: River Pelenna is a small river in Neath Port Talbot, South Wales, known for flowing through former coal-mining valleys before joining the River Afan.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.