Caya River
E828644
The Caya River is a tributary watercourse in the Iberian Peninsula that forms part of the international border between Portugal and Spain within the Guadiana River system.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Caya River canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T9257991 — 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: Caya River Context triple: [Guadiana Basin, hasRiver, Caya River]
-
A.
Akhtuba River
The Akhtuba River is a distributary of the Volga River in southern Russia, flowing through the Volga–Akhtuba floodplain and playing an important role in regional agriculture and fisheries.
-
B.
Tsaritsa River
The Tsaritsa River is a waterway in Volgograd, Russia, historically significant as the small river along which the city’s predecessor, Tsaritsyn, developed.
-
C.
Kalmius River
The Kalmius River is a river in eastern Ukraine that flows through the industrial city of Mariupol before emptying into the Sea of Azov.
-
D.
Alma River
The Alma River is a watercourse on the Crimean Peninsula known for flowing through the Crimean Mountains and for being the site of the 1854 Battle of Alma during the Crimean War.
-
E.
Tagil River
The Tagil River is a waterway in Russia’s Sverdlovsk Oblast that flows through the industrial city of Nizhny Tagil and ultimately feeds into the Tura River within the Ob basin.
- 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: Caya River Target entity description: The Caya River is a tributary watercourse in the Iberian Peninsula that forms part of the international border between Portugal and Spain within the Guadiana River system.
-
A.
Akhtuba River
The Akhtuba River is a distributary of the Volga River in southern Russia, flowing through the Volga–Akhtuba floodplain and playing an important role in regional agriculture and fisheries.
-
B.
Tsaritsa River
The Tsaritsa River is a waterway in Volgograd, Russia, historically significant as the small river along which the city’s predecessor, Tsaritsyn, developed.
-
C.
Kalmius River
The Kalmius River is a river in eastern Ukraine that flows through the industrial city of Mariupol before emptying into the Sea of Azov.
-
D.
Alma River
The Alma River is a watercourse on the Crimean Peninsula known for flowing through the Crimean Mountains and for being the site of the 1854 Battle of Alma during the Crimean War.
-
E.
Tagil River
The Tagil River is a waterway in Russia’s Sverdlovsk Oblast that flows through the industrial city of Nizhny Tagil and ultimately feeds into the Tura River within the Ob basin.
- F. None of above. chosen
Statements (24)
| Predicate | Object |
|---|---|
| instanceOf |
border river
ⓘ
river ⓘ |
| basinCountry |
Portugal
ⓘ
Spain ⓘ |
| borderRegion |
Alentejo
ⓘ
Extremadura ⓘ |
| continent | Europe ⓘ |
| country |
Portugal
ⓘ
Spain ⓘ |
| flowsThrough |
Portugal–Spain border region
ⓘ
linked to:
Spain–Portugal border
|
| formsBorderBetween |
Portugal
ⓘ
Spain ⓘ |
| hasGeopoliticalFunction | part of the international boundary between Portugal and Spain ⓘ |
| hasHydrologicalRole | right-bank tributary of the Guadiana River ⓘ |
| hasLanguageRegion |
Portuguese-speaking area
ⓘ
Spanish-speaking area ⓘ |
| locatedIn |
Iberian Peninsula
ⓘ
southwestern Iberian Peninsula ⓘ |
| locatedInWaterSystem |
Guadiana River system
ⓘ
linked to:
Guadiana River
|
| mouthLocatedIn |
Guadiana River
ⓘ
Portugal ⓘ |
| partOf |
Guadiana River basin
ⓘ
linked to:
Guadiana Basin
Portugal–Spain border river network ⓘ |
| tributaryOf | Guadiana 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: Caya River Description of subject: The Caya River is a tributary watercourse in the Iberian Peninsula that forms part of the international border between Portugal and Spain within the Guadiana River system.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.