Bouçã Reservoir
E562003
Bouçã Reservoir is a man-made lake in central Portugal created by a hydroelectric dam on the Zêzere River.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Bouçã Reservoir canonical | 2 |
| Bouçã Dam | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5958089 — 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: Bouçã Reservoir Context triple: [Zêzere River, formsReservoir, Bouçã Reservoir]
-
A.
Cabril Reservoir
Cabril Reservoir is a major artificial lake in central Portugal, created by a dam on the Zêzere River and used for hydroelectric power generation, water storage, and recreation.
-
B.
Carraízo reservoir
Carraízo Reservoir is a major water storage lake in Puerto Rico that serves as a key source of drinking water and flood control for the San Juan metropolitan area.
-
C.
Burguillo Reservoir
Burguillo Reservoir is a major artificial lake and dam in central Spain, known for regulating water from the Alberche River and serving as a popular site for recreation and hydroelectric power.
-
D.
Pilarcitos Reservoir
Pilarcitos Reservoir is a key drinking water storage reservoir on the San Francisco Peninsula that helps supply water to the San Francisco Bay Area.
-
E.
Castelo de Bode Reservoir
Castelo de Bode Reservoir is a large artificial lake in central Portugal, known for hydroelectric power generation, water supply, and recreational activities such as boating and swimming.
- 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: Bouçã Reservoir Target entity description: Bouçã Reservoir is a man-made lake in central Portugal created by a hydroelectric dam on the Zêzere River.
-
A.
Cabril Reservoir
Cabril Reservoir is a major artificial lake in central Portugal, created by a dam on the Zêzere River and used for hydroelectric power generation, water storage, and recreation.
-
B.
Carraízo reservoir
Carraízo Reservoir is a major water storage lake in Puerto Rico that serves as a key source of drinking water and flood control for the San Juan metropolitan area.
-
C.
Burguillo Reservoir
Burguillo Reservoir is a major artificial lake and dam in central Spain, known for regulating water from the Alberche River and serving as a popular site for recreation and hydroelectric power.
-
D.
Pilarcitos Reservoir
Pilarcitos Reservoir is a key drinking water storage reservoir on the San Francisco Peninsula that helps supply water to the San Francisco Bay Area.
-
E.
Castelo de Bode Reservoir
Castelo de Bode Reservoir is a large artificial lake in central Portugal, known for hydroelectric power generation, water supply, and recreational activities such as boating and swimming.
- F. None of above. chosen
Statements (24)
| Predicate | Object |
|---|---|
| instanceOf | reservoir ⓘ |
| basinCountry | Portugal ⓘ |
| country | Portugal ⓘ |
| createdBy | Bouçã Dam ⓘ |
| formedBy | hydroelectric dam ⓘ |
| hasDamType | concrete gravity dam (Bouçã Dam) ⓘ |
| hasFunction | electricity production ⓘ |
| inflow | Zêzere River ⓘ |
| locatedIn |
Castelo Branco District
ⓘ
Leiria District ⓘ central Portugal ⓘ
linked to:
Centro Region of Portugal
|
| locatedNear |
Pedrógão Grande
ⓘ
Vila de Rei ⓘ |
| locatedOnRiver | Zêzere River ⓘ |
| operator |
EDP - Energias de Portugal
ⓘ
linked to:
EDP – Energias de Portugal
|
| outflow | Zêzere River ⓘ |
| partOf |
Zêzere River hydroelectric scheme
ⓘ
linked to:
Bouçã Dam
|
| purpose | hydroelectric power generation ⓘ |
| region | Centro Region ⓘ |
| riverSystem |
Tagus River basin
ⓘ
linked to:
Tagus Basin
|
| usedFor |
fishing
ⓘ
hydroelectricity ⓘ recreation ⓘ |
| waterbodyType | freshwater lake ⓘ |
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: Bouçã Reservoir Description of subject: Bouçã Reservoir is a man-made lake in central Portugal created by a hydroelectric dam on the Zêzere River.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Bouçã Reservoir