Sau Reservoir
E1028496
Sau Reservoir is a large artificial lake in Catalonia, Spain, created by the Sau Dam on the Ter River and known for its partially submerged village and church tower.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Sau Reservoir canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T13239366 — 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: Sau Reservoir Context triple: [Ter, hasDam, Sau Reservoir]
-
A.
The Reservoir
The Reservoir is a large man-made lake in Central Park, New York City, popular for its scenic running track and iconic skyline views.
-
B.
Reservoir
Reservoir is a light rail station on Boston’s MBTA Green Line D branch serving the Brighton/Chestnut Hill area near the Cleveland Circle transit hub.
-
C.
Ayer Reservoir
Ayer Reservoir is a man-made lake in Massachusetts that serves as a local water resource and recreational area within the Merrimack River watershed.
-
D.
Kama Reservoir
Kama Reservoir is a large artificial lake in Russia formed by damming the Kama River, used primarily for hydroelectric power generation, navigation, and water regulation.
-
E.
Echo Reservoir
Echo Reservoir is a man-made lake in northern Utah popular for boating, fishing, and other water recreation.
- 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: Sau Reservoir Target entity description: Sau Reservoir is a large artificial lake in Catalonia, Spain, created by the Sau Dam on the Ter River and known for its partially submerged village and church tower.
-
A.
The Reservoir
The Reservoir is a large man-made lake in Central Park, New York City, popular for its scenic running track and iconic skyline views.
-
B.
Reservoir
Reservoir is a light rail station on Boston’s MBTA Green Line D branch serving the Brighton/Chestnut Hill area near the Cleveland Circle transit hub.
-
C.
Ayer Reservoir
Ayer Reservoir is a man-made lake in Massachusetts that serves as a local water resource and recreational area within the Merrimack River watershed.
-
D.
Kama Reservoir
Kama Reservoir is a large artificial lake in Russia formed by damming the Kama River, used primarily for hydroelectric power generation, navigation, and water regulation.
-
E.
Echo Reservoir
Echo Reservoir is a man-made lake in northern Utah popular for boating, fishing, and other water recreation.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
artificial lake
ⓘ
reservoir ⓘ |
| basinCountry | Spain NERFINISHED ⓘ |
| climateRegion | Mediterranean climate ⓘ |
| constructionMaterialOfDam | concrete ⓘ |
| country | Spain ⓘ |
| createdBy | Sau Dam NERFINISHED ⓘ |
| ecosystemType | reservoir ecosystem ⓘ |
| hasDam | Sau Dam NERFINISHED ⓘ |
| hasPart |
church of Sant Romà de Sau
NERFINISHED
ⓘ
submerged village of Sant Romà de Sau ⓘ |
| hasShoreLength | irregular shoreline ⓘ |
| hasViewOf | cliffs of Tavertet NERFINISHED ⓘ |
| inflow | Ter River NERFINISHED ⓘ |
| knownFor |
emergent church tower of Sant Romà de Sau
NERFINISHED
ⓘ
partially submerged village of Sant Romà de Sau ⓘ |
| languageOfToponym | Catalan NERFINISHED ⓘ |
| locatedIn |
Catalonia
ⓘ
Osona NERFINISHED ⓘ northeastern Spain ⓘ |
| locatedInMountainRange | Les Guilleries NERFINISHED ⓘ |
| locatedInProtectedArea | Guilleries-Savassona Natural Area NERFINISHED ⓘ |
| locatedNear |
Les Masies de Roda
NERFINISHED
ⓘ
Rupit i Pruit NERFINISHED ⓘ Vilanova de Sau NERFINISHED ⓘ |
| near |
Guilleries Massif
NERFINISHED
ⓘ
Savassona NERFINISHED ⓘ |
| officialName | Pantà de Sau NERFINISHED ⓘ |
| operator | Agència Catalana de l’Aigua NERFINISHED ⓘ |
| outflow | Ter River NERFINISHED ⓘ |
| partOf |
Ter River basin
NERFINISHED
ⓘ
Ter-Llobregat water system NERFINISHED ⓘ |
| purpose |
flood control
ⓘ
hydroelectric power generation ⓘ water supply ⓘ |
| recreationArea | Pantà de Sau recreational area ⓘ |
| region | Province of Barcelona NERFINISHED ⓘ |
| river | Ter River NERFINISHED ⓘ |
| subjectTo |
periodic droughts
ⓘ
water level fluctuations ⓘ |
| submerges | old village of Sant Romà de Sau NERFINISHED ⓘ |
| touristAttraction | visible bell tower during low water levels ⓘ |
| usedFor |
fishing
ⓘ
kayaking ⓘ recreation ⓘ sailing ⓘ tourism ⓘ |
| waterBodyType | freshwater reservoir ⓘ |
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: Sau Reservoir Description of subject: Sau Reservoir is a large artificial lake in Catalonia, Spain, created by the Sau Dam on the Ter River and known for its partially submerged village and church tower.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.