Ipo Dam
E942434
Ipo Dam is a water reservoir and dam in Bulacan, Philippines, that forms a key part of the Angat–Ipo–La Mesa water system supplying Metro Manila.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Ipo Dam canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T11690113 — 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: Ipo Dam Context triple: [La Mesa Dam, waterSource, Ipo Dam]
-
A.
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.
-
B.
Guavio Dam
Guavio Dam is a major hydroelectric dam in Colombia known for its large reservoir and significant contribution to the country’s power generation.
-
C.
Tangga Dam
Tangga Dam is a hydroelectric power facility on Indonesia’s Asahan River that helps generate electricity by harnessing the river’s flow.
-
D.
Mula Dam
Mula Dam is a major irrigation and water-supply dam built on the Mula River in Maharashtra, India.
-
E.
Pracana Dam
Pracana Dam is a hydroelectric and water management dam located on the Ocreza River in central Portugal, contributing to the regulation and use of resources in the Tagus River basin.
- 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: Ipo Dam Target entity description: Ipo Dam is a water reservoir and dam in Bulacan, Philippines, that forms a key part of the Angat–Ipo–La Mesa water system supplying Metro Manila.
-
A.
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.
-
B.
Guavio Dam
Guavio Dam is a major hydroelectric dam in Colombia known for its large reservoir and significant contribution to the country’s power generation.
-
C.
Tangga Dam
Tangga Dam is a hydroelectric power facility on Indonesia’s Asahan River that helps generate electricity by harnessing the river’s flow.
-
D.
Mula Dam
Mula Dam is a major irrigation and water-supply dam built on the Mula River in Maharashtra, India.
-
E.
Pracana Dam
Pracana Dam is a hydroelectric and water management dam located on the Ocreza River in central Portugal, contributing to the regulation and use of resources in the Tagus River basin.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
dam
ⓘ
water reservoir ⓘ |
| basinCountry | Philippines NERFINISHED ⓘ |
| catchmentAreaCountry | Philippines NERFINISHED ⓘ |
| connectedInfrastructure | raw water aqueducts to La Mesa Treatment Plants ⓘ |
| constructionStartDate | 1936 ⓘ |
| country | Philippines ⓘ |
| damType | concrete gravity dam ⓘ |
| distanceFromManila | about 7.5 kilometers downstream of Angat Dam ⓘ |
| feeds | La Mesa Dam NERFINISHED ⓘ |
| function | regulates flow from Angat Dam to La Mesa Dam ⓘ |
| hasRoleIn | Metro Manila water security ⓘ |
| hasSpillway | yes ⓘ |
| hasWatershed | Angat–Ipo watershed NERFINISHED ⓘ |
| locatedIn |
Bulacan
NERFINISHED
ⓘ
Central Luzon NERFINISHED ⓘ Norzagaray, Bulacan NERFINISHED ⓘ |
| locatedInIsland | Luzon NERFINISHED ⓘ |
| locatedInProtectedArea | Angat Watershed Forest Reserve NERFINISHED ⓘ |
| locatedNear |
Angat Dam
NERFINISHED
ⓘ
La Mesa Dam NERFINISHED ⓘ |
| locatedOnRiver | Angat River NERFINISHED ⓘ |
| managedBy | Metropolitan Waterworks and Sewerage System NERFINISHED ⓘ |
| nearCity |
Norzagaray
NERFINISHED
ⓘ
San Jose del Monte NERFINISHED ⓘ |
| openingDate | 1938 ⓘ |
| operator | Metropolitan Waterworks and Sewerage System NERFINISHED ⓘ |
| ownedBy | Philippine government NERFINISHED ⓘ |
| partOf |
Angat River basin
NERFINISHED
ⓘ
Angat–Ipo–La Mesa water system NERFINISHED ⓘ |
| partOfSystem | Metro Manila raw water conveyance system NERFINISHED ⓘ |
| purpose |
flood control
ⓘ
irrigation support ⓘ municipal water supply ⓘ |
| reconstructionCompletionDate | 1984 ⓘ |
| regionServed |
Metro Manila
NERFINISHED
ⓘ
parts of Bulacan ⓘ |
| significance | major component of Metro Manila water supply ⓘ |
| subjectTo |
Philippine water resources regulations
ⓘ
flood management operations ⓘ water level monitoring ⓘ |
| suppliesWaterTo |
Metro Manila
NERFINISHED
ⓘ
National Capital Region NERFINISHED ⓘ |
| waterSourceFor | Metro Manila domestic water use ⓘ |
| waterUse |
industrial water supply
ⓘ
potable water production ⓘ |
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: Ipo Dam Description of subject: Ipo Dam is a water reservoir and dam in Bulacan, Philippines, that forms a key part of the Angat–Ipo–La Mesa water system supplying Metro Manila.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.