Guadiana River
E68129
The Guadiana River is a major waterway of the Iberian Peninsula that flows through Spain and Portugal, forming part of their border before emptying into the Atlantic Ocean.
All labels observed (5)
| Label | Occurrences |
|---|---|
| Guadiana River canonical | 52 |
| Guadiana | 1 |
| Guadiana River (southern stretches) | 1 |
| Guadiana River estuary | 1 |
| lower Guadiana River | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T544667 — 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: Guadiana River Context triple: [Castro Marim, locatedNear, Guadiana River]
-
A.
Guadalquivir River
The Guadalquivir River is one of Spain’s major rivers, flowing through Andalusia and the city of Seville before emptying into the Atlantic Ocean.
-
B.
Manzanares River
The Manzanares River is a modest river in central Spain that flows through the city of Madrid and has historically shaped its landscape and development.
-
C.
Tagus River
The Tagus River is the longest river on the Iberian Peninsula, flowing from central Spain through Portugal to the Atlantic Ocean.
-
D.
Ebro River
The Ebro River is one of the longest and most significant rivers in Spain, flowing eastward across the northern Iberian Peninsula to the Mediterranean Sea.
-
E.
Río Almendares
Río Almendares is a major river in Havana, Cuba, known for flowing through the city and forming part of its western boundary before reaching the coast.
- 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: Guadiana River Target entity description: The Guadiana River is a major waterway of the Iberian Peninsula that flows through Spain and Portugal, forming part of their border before emptying into the Atlantic Ocean.
-
A.
Guadalquivir River
The Guadalquivir River is one of Spain’s major rivers, flowing through Andalusia and the city of Seville before emptying into the Atlantic Ocean.
-
B.
Manzanares River
The Manzanares River is a modest river in central Spain that flows through the city of Madrid and has historically shaped its landscape and development.
-
C.
Tagus River
The Tagus River is the longest river on the Iberian Peninsula, flowing from central Spain through Portugal to the Atlantic Ocean.
-
D.
Ebro River
The Ebro River is one of the longest and most significant rivers in Spain, flowing eastward across the northern Iberian Peninsula to the Mediterranean Sea.
-
E.
Río Almendares
Río Almendares is a major river in Havana, Cuba, known for flowing through the city and forming part of its western boundary before reaching the coast.
- F. None of above. chosen
Statements (31)
| Predicate | Object |
|---|---|
| instanceOf |
international river
ⓘ
river ⓘ |
| borderRegion |
Alentejo
ⓘ
Andalusia ⓘ Extremadura ⓘ |
| continent | Europe ⓘ |
| country |
Portugal
ⓘ
Spain ⓘ |
| dischargesInto | Atlantic Ocean ⓘ |
| flowsThrough |
Portugal
ⓘ
Spain ⓘ |
| formsBorderBetween | Spain and Portugal ⓘ |
| formsPartOfBorderBetween |
Andalusia and Algarve
ⓘ
Extremadura and Alentejo ⓘ |
| hasEconomicImportanceFor |
Portugal
ⓘ
Spain ⓘ |
| hasEstuaryType | tidal estuary ⓘ |
| hasMouthNear | Gulf of Cádiz ⓘ |
| locatedIn | southwestern Iberian Peninsula ⓘ |
| locatedOn | Iberian Peninsula ⓘ |
| majorCityOnRiver |
Ayamonte
ⓘ
Badajoz ⓘ Mérida ⓘ Vila Real de Santo António ⓘ |
| mouth | Atlantic Ocean ⓘ |
| partOf | drainage basin of the Atlantic Ocean ⓘ |
| region | Iberian Peninsula ⓘ |
| sourceCountry | Spain ⓘ |
| usedFor |
hydroelectric power
ⓘ
irrigation ⓘ navigation in lower reaches ⓘ |
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: Guadiana River Description of subject: The Guadiana River is a major waterway of the Iberian Peninsula that flows through Spain and Portugal, forming part of their border before emptying into the Atlantic Ocean.
Referenced by (56)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Guadiana
Reserva Natural do Sapal de Castro Marim e Vila Real de Santo António
→
locatedOn
→
Guadiana River
ⓘ
this entity surface form:
Guadiana River estuary
Reserva Natural do Sapal de Castro Marim e Vila Real de Santo António
→
mainRiver
→
Guadiana River
ⓘ
subject surface form:
Western Spain
subject surface form:
Southern Spain
this entity surface form:
Guadiana River (southern stretches)
this entity surface form:
lower Guadiana River