Karapiro Dam
E421529
Karapiro Dam is a major hydroelectric dam in New Zealand that forms Lake Karapiro and plays a key role in power generation and water management on the Waikato River.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Karapiro Dam canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T4125592 — 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: Karapiro Dam Context triple: [Waikato River, hasHydroelectricDam, Karapiro Dam]
-
A.
Tawa Dam
Tawa Dam is a major masonry dam in Madhya Pradesh, India, built on the Tawa River for irrigation, flood control, and hydroelectric power generation.
-
B.
Arapuni Dam
Arapuni Dam is a major hydroelectric power station and concrete arch dam on New Zealand’s North Island, contributing significantly to the country’s renewable electricity generation.
-
C.
Mutirikwi Dam
Mutirikwi Dam is a major concrete arch dam in southeastern Zimbabwe that creates Lake Mutirikwi and serves as an important source of irrigation water and hydroelectric power.
-
D.
Wayatinah Dam
Wayatinah Dam is a hydroelectric dam on Tasmania’s Derwent River that forms part of the state’s major power generation scheme.
-
E.
Tantangara Dam
Tantangara Dam is a major concrete gravity dam in New South Wales, Australia, built as part of the Snowy Mountains Scheme to store water for hydroelectric power generation and irrigation.
- 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: Karapiro Dam Target entity description: Karapiro Dam is a major hydroelectric dam in New Zealand that forms Lake Karapiro and plays a key role in power generation and water management on the Waikato River.
-
A.
Tawa Dam
Tawa Dam is a major masonry dam in Madhya Pradesh, India, built on the Tawa River for irrigation, flood control, and hydroelectric power generation.
-
B.
Arapuni Dam
Arapuni Dam is a major hydroelectric power station and concrete arch dam on New Zealand’s North Island, contributing significantly to the country’s renewable electricity generation.
-
C.
Mutirikwi Dam
Mutirikwi Dam is a major concrete arch dam in southeastern Zimbabwe that creates Lake Mutirikwi and serves as an important source of irrigation water and hydroelectric power.
-
D.
Wayatinah Dam
Wayatinah Dam is a hydroelectric dam on Tasmania’s Derwent River that forms part of the state’s major power generation scheme.
-
E.
Tantangara Dam
Tantangara Dam is a major concrete gravity dam in New South Wales, Australia, built as part of the Snowy Mountains Scheme to store water for hydroelectric power generation and irrigation.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
gravity dam
ⓘ
hydroelectric dam ⓘ |
| associatedWith | Lake Karapiro rowing regatta course ⓘ |
| basinCountry | New Zealand ⓘ |
| commissioned | 1947 ⓘ |
| connectsToGrid |
New Zealand electricity grid
ⓘ
surface form:
New Zealand national grid
|
| constructionBegan | 1940 ⓘ |
| country | New Zealand ⓘ |
| createsLakeUsedFor |
canoe sprint
ⓘ
recreation ⓘ rowing ⓘ |
| environmentalImpact | modifies Waikato River flow regime ⓘ |
| formsReservoir | Lake Karapiro ⓘ |
| hasCatchment | Waikato River catchment ⓘ |
| hasPowerPlant | Karapiro Power Station ⓘ |
| hasReservoir | Lake Karapiro ⓘ |
| hasSpillway | yes ⓘ |
| historicalContext | built during World War II era ⓘ |
| infrastructureType | hydroelectric infrastructure ⓘ |
| locatedDownstreamOf | Horahora Dam site ⓘ |
| locatedInCountrySubdivision |
Waipā District
ⓘ
surface form:
Waipa District
|
| locatedInRegion | Waikato NERFINISHED ⓘ |
| locatedNear | Cambridge, New Zealand ⓘ |
| locatedOnIsland | North Island ⓘ |
| locatedOnRiver | Waikato River NERFINISHED ⓘ |
| locatedUpstreamOf | Arapuni Dam ⓘ |
| manages | Waikato River flows ⓘ |
| near |
New Zealand State Highway 1
ⓘ
surface form:
State Highway 1 (New Zealand)
|
| nearbyCity | Hamilton, New Zealand ⓘ |
| nearbySettlement | Karapiro ⓘ |
| numberOfTurbines | 3 ⓘ |
| oneOf | eight hydroelectric power stations on the Waikato River ⓘ |
| opened | 1947 ⓘ |
| operator | Mercury NZ Limited ⓘ |
| ownedBy | Mercury NZ Limited ⓘ |
| partOf |
New Zealand electricity grid
ⓘ
surface form:
New Zealand electricity system
Waikato hydro scheme ⓘ
surface form:
Waikato hydro power scheme
|
| primaryEnergySource | hydropower ⓘ |
| purpose |
flood control
ⓘ
flow regulation ⓘ power generation ⓘ water management ⓘ |
| regionHydropowerImportance | major component of North Island electricity supply ⓘ |
| riverSystem | Waikato River system NERFINISHED ⓘ |
| status | operational ⓘ |
| turbineType | Francis turbine ⓘ |
| usedFor |
base-load electricity generation
ⓘ
peak electricity generation ⓘ |
| watercourse | Waikato River NERFINISHED ⓘ |
| waterManagementRole | supports downstream water supply and uses ⓘ |
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: Karapiro Dam Description of subject: Karapiro Dam is a major hydroelectric dam in New Zealand that forms Lake Karapiro and plays a key role in power generation and water management on the Waikato River.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Cambridge, New Zealand