Hoogheemraadschap van Delfland
E601852
Hoogheemraadschap van Delfland is one of the oldest Dutch regional water authorities, responsible for water management, flood protection, and wastewater treatment in the Delfland region of South Holland.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Hoogheemraadschap van Delfland canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6507283 — 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: Hoogheemraadschap van Delfland Context triple: [Keringhuis, relatedTo, Hoogheemraadschap van Delfland]
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A.
Hoogheemraadschap van Rijnland
Hoogheemraadschap van Rijnland is a Dutch regional water authority responsible for water management, flood protection, and water quality in the Rijnland area of the western Netherlands.
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B.
Provincial Council of Zeeland
The Provincial Council of Zeeland is the elected regional parliament responsible for setting policy and overseeing governance in the Dutch province of Zeeland.
-
C.
Provincial Council of North Holland
The Provincial Council of North Holland is the elected legislative body that governs the Dutch province of North Holland, setting regional policies and overseeing the provincial executive.
-
D.
Provincial Council of Friesland
The Provincial Council of Friesland is the elected legislative body that governs the Dutch province of Friesland, setting regional policies and overseeing the provincial executive.
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E.
Provincial Council of North Brabant
The Provincial Council of North Brabant is the elected legislative body responsible for setting policy and overseeing provincial governance in the Dutch province of North Brabant.
- 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: Hoogheemraadschap van Delfland Target entity description: Hoogheemraadschap van Delfland is one of the oldest Dutch regional water authorities, responsible for water management, flood protection, and wastewater treatment in the Delfland region of South Holland.
-
A.
Hoogheemraadschap van Rijnland
Hoogheemraadschap van Rijnland is a Dutch regional water authority responsible for water management, flood protection, and water quality in the Rijnland area of the western Netherlands.
-
B.
Provincial Council of Zeeland
The Provincial Council of Zeeland is the elected regional parliament responsible for setting policy and overseeing governance in the Dutch province of Zeeland.
-
C.
Provincial Council of North Holland
The Provincial Council of North Holland is the elected legislative body that governs the Dutch province of North Holland, setting regional policies and overseeing the provincial executive.
-
D.
Provincial Council of Friesland
The Provincial Council of Friesland is the elected legislative body that governs the Dutch province of Friesland, setting regional policies and overseeing the provincial executive.
-
E.
Provincial Council of North Brabant
The Provincial Council of North Brabant is the elected legislative body responsible for setting policy and overseeing provincial governance in the Dutch province of North Brabant.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
Dutch water board
ⓘ
regional water authority ⓘ |
| appliesRegulation |
Dutch Water Act
NERFINISHED
ⓘ
European Union water directives ⓘ |
| collects | water board taxes ⓘ |
| country | Netherlands ⓘ |
| hasBoard |
executive board
ⓘ
general board ⓘ |
| hasJurisdictionOver |
municipality of Delft
ⓘ
municipality of Leidschendam-Voorburg NERFINISHED ⓘ municipality of Maassluis NERFINISHED ⓘ municipality of Midden-Delfland NERFINISHED ⓘ municipality of Pijnacker-Nootdorp NERFINISHED ⓘ municipality of Rijswijk NERFINISHED ⓘ municipality of Schiedam NERFINISHED ⓘ municipality of The Hague ⓘ municipality of Vlaardingen NERFINISHED ⓘ municipality of Wassenaar NERFINISHED ⓘ municipality of Westland ⓘ municipality of Zoetermeer NERFINISHED ⓘ port area of Rotterdam (partial) ⓘ |
| hasTask |
maintaining safe water levels
ⓘ
monitoring ecological water quality ⓘ protecting against flooding from rivers ⓘ protecting against flooding from sea ⓘ treating urban wastewater ⓘ |
| headedBy | dijkgraaf ⓘ |
| headquartersLocation | Delft NERFINISHED ⓘ |
| inception | 13th century ⓘ |
| isOneOf | oldest water boards in the Netherlands ⓘ |
| languageOfWorkOrName | Dutch ⓘ |
| locatedIn |
Delfland region
NERFINISHED
ⓘ
province of South Holland ⓘ |
| operatesIn |
coastal low-lying polder area
ⓘ
densely populated urban area ⓘ |
| partOf | Dutch water management system ⓘ |
| responsibleFor |
flood protection
ⓘ
management of dikes and dams ⓘ management of pumping stations ⓘ sewage treatment plants ⓘ surface water quality ⓘ wastewater treatment ⓘ water management ⓘ |
| uses |
polder pumping stations
ⓘ
sluices and weirs ⓘ wastewater treatment technologies ⓘ |
| website | https://www.hhdelfland.nl ⓘ |
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: Hoogheemraadschap van Delfland Description of subject: Hoogheemraadschap van Delfland is one of the oldest Dutch regional water authorities, responsible for water management, flood protection, and wastewater treatment in the Delfland region of South Holland.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.