Lake Eupen
E660126
Lake Eupen is an artificial reservoir in eastern Belgium that supplies drinking water and helps regulate the flow of the Vesdre River.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Lake Eupen canonical | 3 |
| Eupen Reservoir | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7369688 — 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: Lake Eupen Context triple: [Vesdre, hasReservoir, Lake Eupen]
-
A.
Bütgenbach Lake
Bütgenbach Lake is an artificial reservoir in eastern Belgium known for its recreational activities such as swimming, sailing, and hiking along its scenic shores.
-
B.
Uitgeestermeer
Uitgeestermeer is a lake in North Holland, the Netherlands, known for its recreational boating, sailing, and natural wetland surroundings near the town of Uitgeest.
-
C.
Hofvijver lake
Hofvijver lake is a historic pond in the center of The Hague, Netherlands, bordered by the Binnenhof complex and known as a symbolic heart of Dutch political life.
-
D.
Volkerakmeer
Volkerakmeer is a lake in the southwestern Netherlands that forms part of the Rhine–Meuse–Scheldt delta and serves as an important waterway and water management area.
-
E.
Braassemermeer
Braassemermeer is a lake in the Dutch province of South Holland, known for recreational boating and water sports.
- 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: Lake Eupen Target entity description: Lake Eupen is an artificial reservoir in eastern Belgium that supplies drinking water and helps regulate the flow of the Vesdre River.
-
A.
Bütgenbach Lake
Bütgenbach Lake is an artificial reservoir in eastern Belgium known for its recreational activities such as swimming, sailing, and hiking along its scenic shores.
-
B.
Uitgeestermeer
Uitgeestermeer is a lake in North Holland, the Netherlands, known for its recreational boating, sailing, and natural wetland surroundings near the town of Uitgeest.
-
C.
Hofvijver lake
Hofvijver lake is a historic pond in the center of The Hague, Netherlands, bordered by the Binnenhof complex and known as a symbolic heart of Dutch political life.
-
D.
Volkerakmeer
Volkerakmeer is a lake in the southwestern Netherlands that forms part of the Rhine–Meuse–Scheldt delta and serves as an important waterway and water management area.
-
E.
Braassemermeer
Braassemermeer is a lake in the Dutch province of South Holland, known for recreational boating and water sports.
- F. None of above. chosen
Statements (29)
| Predicate | Object |
|---|---|
| instanceOf | reservoir ⓘ |
| basinCountry | Belgium ⓘ |
| country | Belgium ⓘ |
| createdBy | Eupen Dam ⓘ |
| hasDam | Eupen Dam ⓘ |
| hasFunction | raw water storage ⓘ |
| hasRecreation |
cycling
ⓘ
hiking ⓘ nature observation ⓘ |
| inflow | Vesdre River ⓘ |
| isPartOf | Belgian water supply system ⓘ |
| locatedIn |
Ardennes
ⓘ
linked to:
Ardennes Forest
German-speaking Community of Belgium ⓘ
linked to:
Belgian German-speaking Community
High Fens ⓘ Liège Province ⓘ
linked to:
Province of Liège
eastern Belgium ⓘ |
| locatedNear | Eupen ⓘ |
| nearbyCity | Eupen ⓘ |
| operator | SWDE ⓘ |
| outflow | Vesdre River ⓘ |
| partOf | Vesdre basin ⓘ |
| purpose |
flood control
ⓘ
low-flow augmentation ⓘ potable water supply ⓘ |
| regulatesFlowOf | Vesdre River ⓘ |
| use |
drinking water supply
ⓘ
flow regulation ⓘ |
| watercourse | Vesdre River ⓘ |
| waterManagementRole | regulation of Vesdre River discharge ⓘ |
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: Lake Eupen Description of subject: Lake Eupen is an artificial reservoir in eastern Belgium that supplies drinking water and helps regulate the flow of the Vesdre River.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Lake Eupen