Grevelingenmeer
E115389
Grevelingenmeer is a large saltwater lake in the southwestern Netherlands, known for its water sports, nature reserves, and role in the Delta Works coastal defense system.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Grevelingenmeer canonical | 27 |
| Grevelingen lake | 2 |
| Grevelingen lake area | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T907340 — 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: Grevelingenmeer Context triple: [Brouwersdam, separates, Grevelingenmeer]
-
A.
Haarlemmermeer
Haarlemmermeer is a municipality in the province of North Holland in the Netherlands, best known for encompassing Amsterdam Airport Schiphol.
-
B.
IJsselmeer
IJsselmeer is a large shallow freshwater lake in the central Netherlands, created by the closure of the Zuiderzee and known for its dikes, reclaimed polders, and importance to Dutch water management and recreation.
-
C.
Eemsdelta
Eemsdelta is a municipality in the Dutch province of Groningen, known for its coastal location along the Ems estuary and its mix of historic villages and industrial port areas.
-
D.
Biesbosch
Biesbosch is a large freshwater tidal wetland and national park in the Netherlands, known for its intricate network of rivers, creeks, and rich birdlife.
-
E.
Grevelingendam
Grevelingendam is a major dam in the southwestern Netherlands that forms part of the Delta Works, protecting the Rhine–Meuse–Scheldt delta from flooding while separating the Grevelingenmeer from the North Sea.
- 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: Grevelingenmeer Target entity description: Grevelingenmeer is a large saltwater lake in the southwestern Netherlands, known for its water sports, nature reserves, and role in the Delta Works coastal defense system.
-
A.
Haarlemmermeer
Haarlemmermeer is a municipality in the province of North Holland in the Netherlands, best known for encompassing Amsterdam Airport Schiphol.
-
B.
IJsselmeer
IJsselmeer is a large shallow freshwater lake in the central Netherlands, created by the closure of the Zuiderzee and known for its dikes, reclaimed polders, and importance to Dutch water management and recreation.
-
C.
Eemsdelta
Eemsdelta is a municipality in the Dutch province of Groningen, known for its coastal location along the Ems estuary and its mix of historic villages and industrial port areas.
-
D.
Biesbosch
Biesbosch is a large freshwater tidal wetland and national park in the Netherlands, known for its intricate network of rivers, creeks, and rich birdlife.
-
E.
Grevelingendam
Grevelingendam is a major dam in the southwestern Netherlands that forms part of the Delta Works, protecting the Rhine–Meuse–Scheldt delta from flooding while separating the Grevelingenmeer from the North Sea.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
artificial lake
ⓘ
body of water ⓘ saltwater lake ⓘ |
| country | Netherlands ⓘ |
| ecosystemType | brackish to saltwater ecosystem ⓘ |
| hasActivity |
boating
ⓘ
kayaking ⓘ nature excursions ⓘ stand-up paddleboarding ⓘ |
| hasFeature |
beaches
ⓘ
bird habitats ⓘ camping sites ⓘ holiday parks ⓘ islands ⓘ marinas ⓘ nature reserves ⓘ sandbanks ⓘ |
| hasInfrastructure |
dikes
ⓘ
locks ⓘ sluices ⓘ |
| knownFor |
birdwatching
ⓘ
clear water ⓘ diverse marine life ⓘ tourism ⓘ |
| locatedIn |
Southwestern Netherlands
ⓘ
Zuid-Holland ⓘ
surface form:
province of South Holland
Zeeland ⓘ
surface form:
province of Zeeland
|
| locatedOn | North Sea coast of the Netherlands ⓘ |
| near |
Brouwersdam
ⓘ
Goeree-Overflakkee ⓘ Grevelingendam ⓘ Schouwen-Duiveland ⓘ |
| partOf |
Delta Works
ⓘ
Rhine–Meuse–Scheldt delta ⓘ |
| roleIn |
coastal defense
ⓘ
flood protection ⓘ |
| separatedBy |
Brouwersdam
ⓘ
Grevelingendam ⓘ |
| separatedFrom | North Sea ⓘ |
| usedFor |
diving
ⓘ
kitesurfing ⓘ recreation ⓘ sailing ⓘ water sports ⓘ windsurfing ⓘ |
| waterType | saltwater ⓘ |
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: Grevelingenmeer Description of subject: Grevelingenmeer is a large saltwater lake in the southwestern Netherlands, known for its water sports, nature reserves, and role in the Delta Works coastal defense system.
Referenced by (30)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Grevelingen lake
this entity surface form:
Grevelingen lake
subject surface form:
Goeree-Overflakkee