Angat Dam
E940804
Angat Dam is a major concrete water reservoir and hydroelectric facility in Bulacan, Philippines, that supplies much of Metro Manila’s potable water and power.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Angat Dam canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T11690112 — 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: Angat Dam Context triple: [La Mesa Dam, waterSource, Angat Dam]
-
A.
Pangue Dam
Pangue Dam is a major hydroelectric power facility in Chile, built on the Biobío River to generate electricity and support the country’s energy needs.
-
B.
Macagua Dam
Macagua Dam is a major hydroelectric dam complex in Venezuela that forms part of the Guri–Macagua–Caruachi system generating power from the Caroní River.
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C.
Nangbeto Dam
Nangbeto Dam is a hydroelectric and irrigation dam on the Mono River in West Africa, jointly developed by Togo and Benin to generate power and support regional water management.
-
D.
Malpaso Dam
Malpaso Dam is a major hydroelectric dam in Chiapas, Mexico, forming one of the country’s largest reservoirs and playing a key role in national power generation and flood control.
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E.
Ambuklao Dam
Ambuklao Dam is a major hydroelectric and flood-control dam in Benguet, Philippines, known as one of the country’s earliest large-scale hydropower projects.
- 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: Angat Dam Target entity description: Angat Dam is a major concrete water reservoir and hydroelectric facility in Bulacan, Philippines, that supplies much of Metro Manila’s potable water and power.
-
A.
Pangue Dam
Pangue Dam is a major hydroelectric power facility in Chile, built on the Biobío River to generate electricity and support the country’s energy needs.
-
B.
Macagua Dam
Macagua Dam is a major hydroelectric dam complex in Venezuela that forms part of the Guri–Macagua–Caruachi system generating power from the Caroní River.
-
C.
Nangbeto Dam
Nangbeto Dam is a hydroelectric and irrigation dam on the Mono River in West Africa, jointly developed by Togo and Benin to generate power and support regional water management.
-
D.
Malpaso Dam
Malpaso Dam is a major hydroelectric dam in Chiapas, Mexico, forming one of the country’s largest reservoirs and playing a key role in national power generation and flood control.
-
E.
Ambuklao Dam
Ambuklao Dam is a major hydroelectric and flood-control dam in Benguet, Philippines, known as one of the country’s earliest large-scale hydropower projects.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
concrete dam
ⓘ
dam ⓘ gravity dam ⓘ hydroelectric power facility ⓘ water reservoir ⓘ |
| affectsWatershed | Angat Watershed NERFINISHED ⓘ |
| basinCountry | Philippines NERFINISHED ⓘ |
| connectedTo |
Ipo Dam
NERFINISHED
ⓘ
Umiray River NERFINISHED ⓘ |
| constructionBegan | 1964 ⓘ |
| country | Philippines ⓘ |
| downstreamStructure |
Bustos Dam
NERFINISHED
ⓘ
Ipo Dam NERFINISHED ⓘ |
| elevationAtCrest | around 210 meters above sea level ⓘ |
| hasPowerPlant | Angat Hydroelectric Power Plant NERFINISHED ⓘ |
| installedCapacity | around 246 MW ⓘ |
| locatedIn |
Angat River
NERFINISHED
ⓘ
Bulacan NERFINISHED ⓘ Luzon ⓘ |
| locatedInProtectedArea | Angat Watershed Forest Reserve NERFINISHED ⓘ |
| locatedNear |
Angat, Bulacan
NERFINISHED
ⓘ
Norzagaray, Bulacan NERFINISHED ⓘ |
| managedBy | Angat Hydropower Corporation NERFINISHED ⓘ |
| nearCity |
Norzagaray
NERFINISHED
ⓘ
San Jose del Monte NERFINISHED ⓘ |
| openingDate | 1967 ⓘ |
| operator |
Metropolitan Waterworks and Sewerage System
NERFINISHED
ⓘ
National Power Corporation NERFINISHED ⓘ |
| owner | Government of the Philippines NERFINISHED ⓘ |
| partOf | Angat–Umiray–Ipo water system NERFINISHED ⓘ |
| primaryWaterSourceFor | Metropolitan Waterworks and Sewerage System NERFINISHED ⓘ |
| providesIrrigationTo | Bulacan farmlands ⓘ |
| purpose |
flood control
ⓘ
hydroelectric power generation ⓘ irrigation ⓘ water supply ⓘ |
| region | Central Luzon NERFINISHED ⓘ |
| reservoirName |
Angat Lake
NERFINISHED
ⓘ
Angat Reservoir NERFINISHED ⓘ |
| riverCrossed | Angat River NERFINISHED ⓘ |
| significance |
major hydroelectric power source in Luzon
ⓘ
major source of potable water for Metro Manila ⓘ |
| suppliesWaterTo |
Bulacan
NERFINISHED
ⓘ
Cavite NERFINISHED ⓘ Laguna NERFINISHED ⓘ Metro Manila NERFINISHED ⓘ Rizal NERFINISHED ⓘ |
| typeOfHydropower | conventional hydroelectric ⓘ |
| waterConveyedBy | Umiray–Angat Transbasin Tunnel NERFINISHED ⓘ |
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: Angat Dam Description of subject: Angat Dam is a major concrete water reservoir and hydroelectric facility in Bulacan, Philippines, that supplies much of Metro Manila’s potable water and power.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.