Tua River
E405541
The Tua River is a river in northeastern Portugal that flows through a rugged, scenic valley before joining the Douro River.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Tua River canonical | 6 |
How this entity was disambiguated
This entity first appeared as the object of triple T1995559 — 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: Tua River Context triple: [Douro River, majorTributary, Tua River]
-
A.
Meriti River
The Meriti River is a watercourse in the state of Rio de Janeiro, Brazil, that flows through the metropolitan area and empties into Guanabara Bay.
-
B.
Tuivai River
The Tuivai River is a tributary waterway in northeastern India that contributes to the Barak River system and helps drain parts of the surrounding hilly terrain.
-
C.
Vaigai River
The Vaigai River is a major river in the southern Indian state of Tamil Nadu, flowing through cities like Madurai and serving as an important source of irrigation and drinking water.
-
D.
Noi River
The Noi River is a significant waterway in central Thailand that branches from and later rejoins the Chao Phraya River, supporting local agriculture and settlements along its course.
-
E.
Tahuamanu River
The Tahuamanu River is a tributary of the Amazon Basin in the western Amazon rainforest, flowing through the Pando region of northern Bolivia and forming part of the border with Peru.
- 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: Tua River Target entity description: The Tua River is a river in northeastern Portugal that flows through a rugged, scenic valley before joining the Douro River.
-
A.
Meriti River
The Meriti River is a watercourse in the state of Rio de Janeiro, Brazil, that flows through the metropolitan area and empties into Guanabara Bay.
-
B.
Tuivai River
The Tuivai River is a tributary waterway in northeastern India that contributes to the Barak River system and helps drain parts of the surrounding hilly terrain.
-
C.
Vaigai River
The Vaigai River is a major river in the southern Indian state of Tamil Nadu, flowing through cities like Madurai and serving as an important source of irrigation and drinking water.
-
D.
Noi River
The Noi River is a significant waterway in central Thailand that branches from and later rejoins the Chao Phraya River, supporting local agriculture and settlements along its course.
-
E.
Tahuamanu River
The Tahuamanu River is a tributary of the Amazon Basin in the western Amazon rainforest, flowing through the Pando region of northern Bolivia and forming part of the border with Peru.
- F. None of above. chosen
Statements (26)
| Predicate | Object |
|---|---|
| instanceOf | river ⓘ |
| basinCountry | Portugal ⓘ |
| continent | Europe ⓘ |
| country | Portugal ⓘ |
| flowsInDirection | generally southward ⓘ |
| flowsThrough |
Tua Valley
ⓘ
mountainous terrain ⓘ rural areas ⓘ |
| hasCharacteristic |
narrow valley
ⓘ
natural scenery ⓘ steep valley slopes ⓘ |
| hasEcosystem |
Mediterranean river ecosystem
ⓘ
riparian habitats ⓘ |
| hasPart | Tua Valley ⓘ |
| knownFor |
rugged valley landscapes
ⓘ
scenic views ⓘ |
| locatedIn |
Iberian Peninsula
ⓘ
northeastern Portugal ⓘ |
| mouth | Douro River ⓘ |
| mouthLocation | northern Portugal ⓘ |
| partOf |
Douro river basin
ⓘ
linked to:
Douro basin
|
| region |
Trás-os-Montes
ⓘ
linked to:
Trás-os-Montes e Alto Douro
|
| tributaryOf | Douro River ⓘ |
| usedFor |
recreation
ⓘ
tourism ⓘ |
| watercourseType | freshwater 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: Tua River Description of subject: The Tua River is a river in northeastern Portugal that flows through a rugged, scenic valley before joining the Douro River.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.