IJmuiden locks
E149578
The IJmuiden locks are a major Dutch lock complex that forms the key maritime gateway between the North Sea and the port of Amsterdam.
All labels observed (4)
| Label | Occurrences |
|---|---|
| IJmuiden locks canonical | 1 |
| IJmuiden sea locks | 1 |
| North Sea Canal locks at IJmuiden | 1 |
| sea locks at IJmuiden | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1301501 — 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: IJmuiden locks Context triple: [North Sea Canal, hasLockComplex, IJmuiden locks]
-
A.
Canals of Middelburg
The Canals of Middelburg are a historic network of waterways that once served the city’s trade and defense and now form a picturesque feature of its old town.
-
B.
Volkeraksluizen
Volkeraksluizen is a major lock complex in the Netherlands that regulates water levels and shipping traffic between the Volkerak and surrounding waterways.
-
C.
Houtribdijk
Houtribdijk is a major Dutch dam and causeway that connects Lelystad and Enkhuizen, playing a key role in land reclamation and water management in the IJsselmeer region.
-
D.
Zandkreekdam
Zandkreekdam is a Dutch dam and water barrier that forms part of the Delta Works coastal defense system, helping to protect the southwestern Netherlands from flooding.
-
E.
Stadhouderspoort
Stadhouderspoort is a historic gate within The Hague’s Binnenhof complex, traditionally associated with the access route used by the stadtholders of the Dutch Republic.
- 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: IJmuiden locks Target entity description: The IJmuiden locks are a major Dutch lock complex that forms the key maritime gateway between the North Sea and the port of Amsterdam.
-
A.
Canals of Middelburg
The Canals of Middelburg are a historic network of waterways that once served the city’s trade and defense and now form a picturesque feature of its old town.
-
B.
Volkeraksluizen
Volkeraksluizen is a major lock complex in the Netherlands that regulates water levels and shipping traffic between the Volkerak and surrounding waterways.
-
C.
Houtribdijk
Houtribdijk is a major Dutch dam and causeway that connects Lelystad and Enkhuizen, playing a key role in land reclamation and water management in the IJsselmeer region.
-
D.
Zandkreekdam
Zandkreekdam is a Dutch dam and water barrier that forms part of the Delta Works coastal defense system, helping to protect the southwestern Netherlands from flooding.
-
E.
Stadhouderspoort
Stadhouderspoort is a historic gate within The Hague’s Binnenhof complex, traditionally associated with the access route used by the stadtholders of the Dutch Republic.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
lock complex
ⓘ
waterway infrastructure ⓘ |
| connectsTo |
North Sea
ⓘ
North Sea Canal ⓘ Port of Amsterdam ⓘ |
| constructionStart | 19th century ⓘ |
| country | Netherlands ⓘ |
| function |
maritime gateway to Amsterdam
ⓘ
sea lock complex ⓘ |
| hasNavigationRestrictions |
tidal conditions
ⓘ
vessel size limits ⓘ |
| hasPart |
Middle Lock
ⓘ
North Lock ⓘ Small Lock ⓘ South Lock ⓘ control buildings ⓘ dikes ⓘ sea lock gates ⓘ shipping channels ⓘ sluices ⓘ |
| languageOfPlaceName | Dutch ⓘ |
| locatedIn | IJmuiden NERFINISHED ⓘ |
| locatedInMunicipality | Velsen ⓘ |
| locatedInProvince | North Holland ⓘ |
| locatedInRegion |
Randstad
ⓘ
linked to:
Randstad metropolitan region
|
| locatedOnBodyOfWater |
North Sea
ⓘ
North Sea Canal ⓘ |
| maintainedBy | Rijkswaterstaat ⓘ |
| namedAfter | IJmuiden NERFINISHED ⓘ |
| near |
Amsterdam
ⓘ
IJmuiden harbour ⓘ
linked to:
Port of IJmuiden
|
| opened | 19th century ⓘ |
| operator | Rijkswaterstaat ⓘ |
| ownedBy | Kingdom of the Netherlands ⓘ |
| partOf |
Dutch coastal defence system
ⓘ
North Sea Canal system ⓘ
linked to:
North Sea Canal
|
| purpose |
enable passage of seagoing vessels to Amsterdam
ⓘ
regulate water level between North Sea and North Sea Canal ⓘ |
| significance |
main maritime access to Amsterdam
ⓘ
one of the most important lock complexes in the Netherlands ⓘ |
| subjectTo | North Sea tides ⓘ |
| usedFor |
commercial shipping
ⓘ
inland navigation ⓘ passenger ships ⓘ sea-going cargo vessels ⓘ |
| waterway | North Sea Canal ⓘ |
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: IJmuiden locks Description of subject: The IJmuiden locks are a major Dutch lock complex that forms the key maritime gateway between the North Sea and the port of Amsterdam.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: IJmuiden locks
linked to: IJmuiden locks
linked to: IJmuiden locks