Pont d’Arc natural stone arch
E111957
The Pont d’Arc natural stone arch is a spectacular limestone bridge carved by the Ardèche River in southern France, renowned as a major scenic landmark and gateway to the Gorges de l’Ardèche.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Pont d’Arc natural bridge | 5 |
| Pont d’Arc | 4 |
| Pont d’Arc natural stone arch canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T916595 — 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: Pont d’Arc natural stone arch Context triple: [Ardèche River, knownFor, Pont d’Arc natural stone arch]
-
A.
Pont d’Ain
Pont d’Ain is a French commune in the Ain department of eastern France, known for its historic bridge over the Ain River and its picturesque riverside setting.
-
B.
Stone Arch Bridge
The Stone Arch Bridge is a historic former railroad bridge in Minneapolis, Minnesota, known for its distinctive stone arches spanning the Mississippi River near St. Anthony Falls.
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C.
Pont de Saint-Nazaire
Pont de Saint-Nazaire is a large cable-stayed road bridge in western France that spans the Loire estuary, linking the city of Saint-Nazaire with the south bank near Saint-Brevin-les-Pins.
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D.
Puente de Alcántara
Puente de Alcántara is a historic Roman stone arch bridge spanning the Tagus River at Toledo, Spain, renowned for its medieval towers and role as a key entrance to the old city.
-
E.
Garabit Viaduct
The Garabit Viaduct is a 19th-century wrought-iron railway arch bridge in southern France, renowned as an engineering landmark and one of the most impressive early large-scale works of Gustave Eiffel.
- 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: Pont d’Arc natural stone arch Target entity description: The Pont d’Arc natural stone arch is a spectacular limestone bridge carved by the Ardèche River in southern France, renowned as a major scenic landmark and gateway to the Gorges de l’Ardèche.
-
A.
Pont d’Ain
Pont d’Ain is a French commune in the Ain department of eastern France, known for its historic bridge over the Ain River and its picturesque riverside setting.
-
B.
Stone Arch Bridge
The Stone Arch Bridge is a historic former railroad bridge in Minneapolis, Minnesota, known for its distinctive stone arches spanning the Mississippi River near St. Anthony Falls.
-
C.
Pont de Saint-Nazaire
Pont de Saint-Nazaire is a large cable-stayed road bridge in western France that spans the Loire estuary, linking the city of Saint-Nazaire with the south bank near Saint-Brevin-les-Pins.
-
D.
Puente de Alcántara
Puente de Alcántara is a historic Roman stone arch bridge spanning the Tagus River at Toledo, Spain, renowned for its medieval towers and role as a key entrance to the old city.
-
E.
Garabit Viaduct
The Garabit Viaduct is a 19th-century wrought-iron railway arch bridge in southern France, renowned as an engineering landmark and one of the most impressive early large-scale works of Gustave Eiffel.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
landform
ⓘ
natural bridge ⓘ natural stone arch ⓘ tourist attraction ⓘ |
| approximateAge | tens of thousands of years ⓘ |
| closestMajorCity | Montélimar ⓘ |
| country | France ⓘ |
| distanceFromVallonPontdArc | about 5 kilometres southeast ⓘ |
| elevationAboveSeaLevel | about 60 metres ⓘ |
| featuredIn | regional tourism promotions for Ardèche ⓘ |
| formedBy | erosion by the Ardèche River ⓘ |
| formsGatewayTo | Gorges de l’Ardèche ⓘ |
| geologicalEraOfRock | Mesozoic limestone ⓘ |
| geologicalFormationType | karst ⓘ |
| hasBeach | river beaches on both banks ⓘ |
| hasNearbySite | Chauvet-Pont-d’Arc Cave ⓘ |
| hasRoadAccess | D290 road ⓘ |
| hasUse |
canoeing access point
ⓘ
kayaking access point ⓘ scenic viewpoint ⓘ swimming site ⓘ |
| height | about 54 metres ⓘ |
| isPopularFor |
hiking nearby
ⓘ
landscape photography ⓘ river sports ⓘ rock climbing nearby ⓘ |
| isProtectedAs | part of a protected natural area ⓘ |
| locatedIn |
Ardèche department
ⓘ
Auvergne-Rhône-Alpes region ⓘ France ⓘ |
| material | limestone ⓘ |
| namedAfter | its arch shape over the Ardèche River ⓘ |
| near |
Gorges de l’Ardèche
ⓘ
Gorges de l’Ardèche ⓘ
surface form:
Vallon-Pont-d’Arc
|
| notableFor |
dramatic limestone cliffs
ⓘ
gateway appearance to the gorge ⓘ large natural arch span ⓘ |
| orientation | spans Ardèche River roughly east–west ⓘ |
| region |
Southern France
ⓘ
surface form:
southern France
|
| river | Ardèche River ⓘ |
| safetyConcern | risk of strong currents in the Ardèche River ⓘ |
| spanLength | about 59 metres ⓘ |
| tourismSeason | especially busy in summer ⓘ |
| touristRegion |
Gorges de l’Ardèche
ⓘ
surface form:
Ardèche Gorge tourism area
|
| UNESCOBufferRelation | near Chauvet-Pont-d’Arc Cave World Heritage Site ⓘ |
| width | about 34 metres ⓘ |
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: Pont d’Arc natural stone arch Description of subject: The Pont d’Arc natural stone arch is a spectacular limestone bridge carved by the Ardèche River in southern France, renowned as a major scenic landmark and gateway to the Gorges de l’Ardèche.
Referenced by (10)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Pont d’Arc
this entity surface form:
Pont d’Arc natural bridge
this entity surface form:
Pont d’Arc natural bridge
this entity surface form:
Pont d’Arc
this entity surface form:
Pont d’Arc
this entity surface form:
Pont d’Arc natural bridge
this entity surface form:
Pont d’Arc natural bridge
Decorated Cave of Pont d’Arc, known as Grotte Chauvet-Pont d’Arc, Ardèche
→
near
→
Pont d’Arc natural stone arch
ⓘ
this entity surface form:
Pont d’Arc natural bridge