Ringvaart of the Haarlemmermeer
E289269
The Ringvaart of the Haarlemmermeer is a large encircling canal in the Netherlands that was constructed to drain the former Haarlemmermeer lake and now serves as a major waterway.
All labels observed (5)
| Label | Occurrences |
|---|---|
| Ringvaart of the Haarlemmermeer canonical | 17 |
| Haarlemmermeer polder edge | 1 |
| Haarlemmermeer reclamation area | 1 |
| Haarlemmermeer ringvaart | 1 |
| Ringvaart of the Haarlemmermeer polder | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1932041 — 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: Ringvaart of the Haarlemmermeer Context triple: [Abbenes, nearbyWaterBody, Ringvaart of the Haarlemmermeer]
-
A.
Haarlemmermeer
Haarlemmermeer is a municipality in the province of North Holland in the Netherlands, best known for encompassing Amsterdam Airport Schiphol.
-
B.
Grevelingenmeer
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.
-
C.
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.
-
D.
Ooijpolder
Ooijpolder is a Dutch riverine polder and nature area near Nijmegen, known for its scenic floodplains, wetlands, and rich birdlife along the Waal River.
-
E.
Giethoorn
Giethoorn is a picturesque Dutch village famous for its canals, thatched-roof farmhouses, and boat-only waterways, often called the "Venice of the Netherlands."
- 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: Ringvaart of the Haarlemmermeer Target entity description: The Ringvaart of the Haarlemmermeer is a large encircling canal in the Netherlands that was constructed to drain the former Haarlemmermeer lake and now serves as a major waterway.
-
A.
Haarlemmermeer
Haarlemmermeer is a municipality in the province of North Holland in the Netherlands, best known for encompassing Amsterdam Airport Schiphol.
-
B.
Grevelingenmeer
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.
-
C.
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.
-
D.
Ooijpolder
Ooijpolder is a Dutch riverine polder and nature area near Nijmegen, known for its scenic floodplains, wetlands, and rich birdlife along the Waal River.
-
E.
Giethoorn
Giethoorn is a picturesque Dutch village famous for its canals, thatched-roof farmhouses, and boat-only waterways, often called the "Venice of the Netherlands."
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
canal
ⓘ
drainage canal ⓘ waterway ⓘ |
| adjacentTo |
Aalsmeer
NERFINISHED
ⓘ
Hoofddorp NERFINISHED ⓘ Lisse ⓘ Nieuw-Vennep ⓘ Amsterdam Airport Schiphol ⓘ
surface form:
Schiphol Airport
|
| associatedWith | poldering of Haarlemmermeer ⓘ |
| connectsTo |
Drecht waterway
ⓘ
surface form:
Amstel-Drecht canal system
Drecht ⓘ Kagerplassen ⓘ Leidsevaart ⓘ North Sea Canal ⓘ Spaarne ⓘ Westeinderplassen ⓘ |
| constructionMethod | excavated by hand and machinery ⓘ |
| country | Netherlands ⓘ |
| encircles |
Haarlemmermeer
ⓘ
surface form:
Haarlemmermeer polder
|
| formerlyEncircled |
Haarlemmermeer
ⓘ
surface form:
Haarlemmermeer lake
|
| function | boundary of Haarlemmermeer polder ⓘ |
| hasInfrastructure |
bridges
ⓘ
locks ⓘ pumping stations ⓘ |
| hasRoleIn |
flood protection
ⓘ
regulation of water levels in Haarlemmermeer polder ⓘ |
| historicalSignificance | enabled reclamation of Haarlemmermeer lake ⓘ |
| languageOfName | Dutch ⓘ |
| literalMeaning | ring canal of the Haarlemmermeer ⓘ |
| locatedIn |
Randstad metropolitan region
ⓘ
surface form:
Randstad region
province of North Holland ⓘ |
| near |
Amsterdam
ⓘ
Haarlem ⓘ Leiden ⓘ |
| partOf |
Dutch canal network
ⓘ
Haarlemmermeer drainage project ⓘ
surface form:
Haarlemmermeer drainage system
|
| purpose |
drainage of Haarlemmermeer lake
ⓘ
navigation ⓘ |
| region | western Netherlands ⓘ |
| shape | roughly circular ⓘ |
| surrounds | municipality of Haarlemmermeer ⓘ |
| transportCorridorFor | inland shipping between Amsterdam region and south-west Netherlands ⓘ |
| usedFor |
commercial shipping
ⓘ
recreational boating ⓘ water management ⓘ |
| waterManagementAuthority | Hoogheemraadschap van Rijnland ⓘ |
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: Ringvaart of the Haarlemmermeer Description of subject: The Ringvaart of the Haarlemmermeer is a large encircling canal in the Netherlands that was constructed to drain the former Haarlemmermeer lake and now serves as a major waterway.
Referenced by (21)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Haarlemmermeer polder edge
this entity surface form:
Haarlemmermeer reclamation area
this entity surface form:
Haarlemmermeer ringvaart
subject surface form:
Haarlemmermeer
subject surface form:
Haarlemmermeer
this entity surface form:
Ringvaart of the Haarlemmermeer polder