Black Mountain (Wales)
E599609
Black Mountain in Wales is a rugged upland area of the Brecon Beacons National Park known for its dramatic sandstone escarpments, remote moorlands, and glacial lakes.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Black Mountain (Brecon Beacons) | 5 |
| Black Mountain (Wales) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6590883 — 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: Black Mountain (Wales) Context triple: [River Usk, sourceLocatedIn, Black Mountain (Wales)]
-
A.
Caerphilly Mountain
Caerphilly Mountain is a prominent hill in South Wales known for its scenic views, walking trails, and proximity to the town of Caerphilly.
-
B.
Moel Hebog
Moel Hebog is a prominent mountain in North Wales known for its rugged slopes and panoramic views over the surrounding Snowdonia landscape.
-
C.
Maerdy
Maerdy is a former coal mining village located at the head of the Rhondda Fach valley in Rhondda Cynon Taf, South Wales.
-
D.
Pen y Fan
Pen y Fan is a prominent mountain in South Wales known for its sweeping views and popularity with hikers and outdoor enthusiasts.
-
E.
Moel Llyfnant
Moel Llyfnant is a mountain in Snowdonia, Wales, known as a remote, grassy peak often climbed in conjunction with nearby Arenig Fawr.
- 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: Black Mountain (Wales) Target entity description: Black Mountain in Wales is a rugged upland area of the Brecon Beacons National Park known for its dramatic sandstone escarpments, remote moorlands, and glacial lakes.
-
A.
Caerphilly Mountain
Caerphilly Mountain is a prominent hill in South Wales known for its scenic views, walking trails, and proximity to the town of Caerphilly.
-
B.
Moel Hebog
Moel Hebog is a prominent mountain in North Wales known for its rugged slopes and panoramic views over the surrounding Snowdonia landscape.
-
C.
Maerdy
Maerdy is a former coal mining village located at the head of the Rhondda Fach valley in Rhondda Cynon Taf, South Wales.
-
D.
Pen y Fan
Pen y Fan is a prominent mountain in South Wales known for its sweeping views and popularity with hikers and outdoor enthusiasts.
-
E.
Moel Llyfnant
Moel Llyfnant is a mountain in Snowdonia, Wales, known as a remote, grassy peak often climbed in conjunction with nearby Arenig Fawr.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
mountain range
ⓘ
upland area ⓘ |
| country | Wales ⓘ |
| elevation | 802 metres ⓘ |
| geologicalComposition | Old Red Sandstone NERFINISHED ⓘ |
| glacialOrigin | cirque lakes ⓘ |
| hasFeature |
corries
ⓘ
gentler southern slopes ⓘ limestone cliffs ⓘ peat bogs ⓘ sandstone cliffs ⓘ steep north-facing escarpment ⓘ |
| hasLake |
Llyn y Fan Fach
NERFINISHED
ⓘ
Llyn y Fan Fawr NERFINISHED ⓘ |
| hasLanguage | Welsh NERFINISHED ⓘ |
| hasPeak |
Fan Brycheiniog
NERFINISHED
ⓘ
Fan Foel NERFINISHED ⓘ Fan Hir NERFINISHED ⓘ Picws Du NERFINISHED ⓘ |
| hasTrail | Beacons Way NERFINISHED ⓘ |
| highestPoint | Fan Brycheiniog NERFINISHED ⓘ |
| knownFor |
dramatic sandstone escarpments
ⓘ
glacial lakes ⓘ karst features ⓘ limestone pavements ⓘ remote moorlands ⓘ |
| landform |
escarpment
ⓘ
moorland ⓘ plateau ⓘ |
| locatedIn |
Brecon Beacons National Park
NERFINISHED
ⓘ
Carmarthenshire NERFINISHED ⓘ Neath Port Talbot NERFINISHED ⓘ Powys NERFINISHED ⓘ |
| near |
Brynamman
NERFINISHED
ⓘ
Glyntawe NERFINISHED ⓘ Llandeilo NERFINISHED ⓘ |
| notableViewpoint | Fan Brycheiniog summit ridge ⓘ |
| overlooks | Carmarthenshire countryside ⓘ |
| partOf |
Brecon Beacons
NERFINISHED
ⓘ
Fforest Fawr Geopark NERFINISHED ⓘ |
| popularFor |
hiking
ⓘ
hillwalking ⓘ landscape photography ⓘ wild camping ⓘ |
| protectedArea | Brecon Beacons National Park NERFINISHED ⓘ |
| region | south Wales NERFINISHED ⓘ |
| usedFor | sheep grazing ⓘ |
| WelshName | Y Mynydd Du 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: Black Mountain (Wales) Description of subject: Black Mountain in Wales is a rugged upland area of the Brecon Beacons National Park known for its dramatic sandstone escarpments, remote moorlands, and glacial lakes.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Fan Brycheiniog
this entity surface form:
Black Mountain (Brecon Beacons)
subject surface form:
Fan Hir
this entity surface form:
Black Mountain (Brecon Beacons)
subject surface form:
Llyn y Fan Fach
this entity surface form:
Black Mountain (Brecon Beacons)
subject surface form:
Llyn y Fan Fawr
this entity surface form:
Black Mountain (Brecon Beacons)
subject surface form:
Y Mynydd Du
this entity surface form:
Black Mountain (Brecon Beacons)