Ketelmeer
E413741
Ketelmeer is a shallow lake in the central Netherlands that forms part of the IJsselmeer lake system and serves as an important waterway and ecological area.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Ketelmeer canonical | 6 |
How this entity was disambiguated
This entity first appeared as the object of triple T4088256 — 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: Ketelmeer Context triple: [Kampen, borderedByWaterBody, Ketelmeer]
-
A.
Amstel
The Amstel is a river in the Netherlands that flows through Amsterdam and has given its name to the city and a well-known Dutch beer brand.
-
B.
Nieuwer-Amstel
Nieuwer-Amstel was a former municipality in the province of North Holland in the Netherlands, largely corresponding to the area of the modern city of Amstelveen.
-
C.
Ouder-Amstel
Ouder-Amstel is a municipality in the province of North Holland in the Netherlands, located just southeast of Amsterdam.
-
D.
Amsterdam Amstel
Amsterdam Amstel is a major railway and metro station in Amsterdam that serves as an important transport hub connecting regional and local lines.
-
E.
Seelter Buund
Seelter Buund is an organization dedicated to preserving and promoting the Saterland Frisian language and culture.
- 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: Ketelmeer Target entity description: Ketelmeer is a shallow lake in the central Netherlands that forms part of the IJsselmeer lake system and serves as an important waterway and ecological area.
-
A.
Amstel
The Amstel is a river in the Netherlands that flows through Amsterdam and has given its name to the city and a well-known Dutch beer brand.
-
B.
Nieuwer-Amstel
Nieuwer-Amstel was a former municipality in the province of North Holland in the Netherlands, largely corresponding to the area of the modern city of Amstelveen.
-
C.
Ouder-Amstel
Ouder-Amstel is a municipality in the province of North Holland in the Netherlands, located just southeast of Amsterdam.
-
D.
Amsterdam Amstel
Amsterdam Amstel is a major railway and metro station in Amsterdam that serves as an important transport hub connecting regional and local lines.
-
E.
Seelter Buund
Seelter Buund is an organization dedicated to preserving and promoting the Saterland Frisian language and culture.
- F. None of above. chosen
Statements (36)
| Predicate | Object |
|---|---|
| instanceOf |
ecological area
ⓘ
lake ⓘ shallow lake ⓘ waterway ⓘ |
| averageDepth | shallow ⓘ |
| basinCountry | Netherlands ⓘ |
| connectedTo |
IJsselmeer
ⓘ
Randmeren ⓘ Eendracht ⓘ
surface form:
Vossemeer
Zwarte Meer ⓘ |
| country | Netherlands ⓘ |
| hasEcologicalFunction |
habitat for fish
ⓘ
habitat for water birds ⓘ wetland ecosystem ⓘ |
| hasEnvironmentalIssue | sediment contamination ⓘ |
| hasEnvironmentalManagement | sediment depots ⓘ |
| hasShorelineUse |
nature reserves
ⓘ
recreational areas ⓘ |
| inflow | River IJssel NERFINISHED ⓘ |
| locatedAtMouthOf | River IJssel NERFINISHED ⓘ |
| locatedIn |
central Netherlands
ⓘ
province of Flevoland NERFINISHED ⓘ province of Overijssel NERFINISHED ⓘ |
| near |
Dronten
NERFINISHED
ⓘ
Kampen ⓘ Noordoostpolder ⓘ |
| outflow | IJsselmeer ⓘ |
| partOf |
Dutch inland waterway network
ⓘ
Hollandse IJssel basin ⓘ
surface form:
IJssel river delta
IJsselmeer ⓘ IJsselmeer ⓘ
surface form:
IJsselmeer lake system
|
| separatedFrom | IJsselmeer by dams and dikes ⓘ |
| usedFor |
inland shipping
ⓘ
recreation ⓘ water management ⓘ |
| 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: Ketelmeer Description of subject: Ketelmeer is a shallow lake in the central Netherlands that forms part of the IJsselmeer lake system and serves as an important waterway and ecological area.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.