Sarn Badrig
E853219
Sarn Badrig is a submerged ancient causeway or reef off the coast of Wales, traditionally linked to the legendary drowned kingdom of Cantre'r Gwaelod.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Sarn Badrig canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10271835 — 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: Sarn Badrig Context triple: [Cantre'r Gwaelod, associatedWithPlace, Sarn Badrig]
-
A.
Portlligat
Portlligat is a small coastal village in Catalonia, Spain, best known as the longtime home and studio of surrealist artist Salvador Dalí and his wife Gala.
-
B.
Blorenge
Blorenge is a prominent hill in Monmouthshire, Wales, known for its sweeping views over the Usk Valley and the nearby town of Abergavenny.
-
C.
Rhosneigr
Rhosneigr is a coastal village on the Isle of Anglesey in Wales, known for its sandy beaches, water sports, and scenic seaside character.
-
D.
Tal-y-Cafn
Tal-y-Cafn is a small village in Conwy County Borough, Wales, situated in the Conwy Valley and known for its rural setting and former railway station on the Conwy Valley Line.
-
E.
Moydodyr
Moydodyr is a famous Soviet children's fairy-tale poem and character—a living washstand—created by Korney Chukovsky to teach kids about cleanliness and hygiene.
- 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: Sarn Badrig Target entity description: Sarn Badrig is a submerged ancient causeway or reef off the coast of Wales, traditionally linked to the legendary drowned kingdom of Cantre'r Gwaelod.
-
A.
Portlligat
Portlligat is a small coastal village in Catalonia, Spain, best known as the longtime home and studio of surrealist artist Salvador Dalí and his wife Gala.
-
B.
Blorenge
Blorenge is a prominent hill in Monmouthshire, Wales, known for its sweeping views over the Usk Valley and the nearby town of Abergavenny.
-
C.
Rhosneigr
Rhosneigr is a coastal village on the Isle of Anglesey in Wales, known for its sandy beaches, water sports, and scenic seaside character.
-
D.
Tal-y-Cafn
Tal-y-Cafn is a small village in Conwy County Borough, Wales, situated in the Conwy Valley and known for its rural setting and former railway station on the Conwy Valley Line.
-
E.
Moydodyr
Moydodyr is a famous Soviet children's fairy-tale poem and character—a living washstand—created by Korney Chukovsky to teach kids about cleanliness and hygiene.
- F. None of above. chosen
Statements (41)
| Predicate | Object |
|---|---|
| instanceOf |
coastal landform
ⓘ
reef ⓘ submerged causeway ⓘ |
| alsoKnownAs | Sarn Padrig NERFINISHED ⓘ |
| associatedWithLegend |
Cantre'r Gwaelod
NERFINISHED
ⓘ
legendary drowned kingdom in Cardigan Bay ⓘ |
| chartedOn | nautical charts ⓘ |
| country | Wales ⓘ |
| culturalSignificance |
important in Welsh folklore
ⓘ
linked to stories of a sunken land ⓘ |
| featureType | subtidal reef ⓘ |
| geologicalOrigin | glacial moraine ⓘ |
| hasTidalRangeEffect | exposure varies with tides ⓘ |
| hazardFor | shipping ⓘ |
| languageOfName | Welsh ⓘ |
| length | approximately 20 kilometres ⓘ |
| locatedIn |
Cardigan Bay
NERFINISHED
ⓘ
Irish Sea NERFINISHED ⓘ United Kingdom ⓘ |
| locatedOffCoastOf |
Gwynedd
NERFINISHED
ⓘ
Meirionnydd NERFINISHED ⓘ west coast of Wales ⓘ |
| material |
boulders
ⓘ
glacial deposits ⓘ gravel ⓘ sand ⓘ |
| nameMeaning | Patrick's causeway NERFINISHED ⓘ |
| nearbySettlement |
Barmouth
NERFINISHED
ⓘ
Harlech NERFINISHED ⓘ Tywyn NERFINISHED ⓘ |
| orientation | extends southwest from the Welsh coast into Cardigan Bay ⓘ |
| partlyExposedAt | low tide ⓘ |
| partOf |
Welsh coastline
ⓘ
series of glacial sarns in Cardigan Bay ⓘ |
| region | northwest Wales NERFINISHED ⓘ |
| significance | example of post-glacial coastal features in Wales ⓘ |
| similarTo |
Sarn Gynfelyn
NERFINISHED
ⓘ
Sarn y Bwch NERFINISHED ⓘ |
| studiedIn | Welsh coastal geomorphology ⓘ |
| submergedAt | high tide ⓘ |
| traditionalInterpretation | remains of a causeway to Cantre'r Gwaelod ⓘ |
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: Sarn Badrig Description of subject: Sarn Badrig is a submerged ancient causeway or reef off the coast of Wales, traditionally linked to the legendary drowned kingdom of Cantre'r Gwaelod.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Cantre'r Gwaelod