La Mesa Reservoir
E524830
La Mesa Reservoir is a major water storage facility in the Philippines that supplies potable water to Metro Manila and is located within the protected La Mesa Watershed.
All labels observed (2)
| Label | Occurrences |
|---|---|
| La Mesa Reservoir canonical | 6 |
| La Mesa Watershed Reservoir | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5357777 — 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: La Mesa Reservoir Context triple: [La Mesa Watershed, hasPart, La Mesa Reservoir]
-
A.
Martinez Reservoir
Martinez Reservoir is a man-made water storage facility in Contra Costa County, California, used for municipal and irrigation supply as part of the region’s canal and water management system.
-
B.
Abiquiu Reservoir
Abiquiu Reservoir is a man-made lake in northern New Mexico known for its scenic desert landscape, recreational opportunities, and role in regional water storage and management.
-
C.
La Paloma Reservoir
La Paloma Reservoir is a major artificial lake in Chile’s Coquimbo Region, known for supporting irrigation and water supply in the Monte Patria area.
-
D.
Camanche Reservoir
Camanche Reservoir is a man-made lake in California used for water storage, flood control, recreation, and wildlife habitat along the Mokelumne River.
-
E.
Don Pedro Reservoir
Don Pedro Reservoir is a large artificial lake in California’s Sierra Nevada foothills, primarily used for water storage, hydroelectric power generation, and recreation.
- 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: La Mesa Reservoir Target entity description: La Mesa Reservoir is a major water storage facility in the Philippines that supplies potable water to Metro Manila and is located within the protected La Mesa Watershed.
-
A.
Martinez Reservoir
Martinez Reservoir is a man-made water storage facility in Contra Costa County, California, used for municipal and irrigation supply as part of the region’s canal and water management system.
-
B.
Abiquiu Reservoir
Abiquiu Reservoir is a man-made lake in northern New Mexico known for its scenic desert landscape, recreational opportunities, and role in regional water storage and management.
-
C.
La Paloma Reservoir
La Paloma Reservoir is a major artificial lake in Chile’s Coquimbo Region, known for supporting irrigation and water supply in the Monte Patria area.
-
D.
Camanche Reservoir
Camanche Reservoir is a man-made lake in California used for water storage, flood control, recreation, and wildlife habitat along the Mokelumne River.
-
E.
Don Pedro Reservoir
Don Pedro Reservoir is a large artificial lake in California’s Sierra Nevada foothills, primarily used for water storage, hydroelectric power generation, and recreation.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
reservoir
ⓘ
water storage facility ⓘ |
| basinCountry | Philippines NERFINISHED ⓘ |
| cityServed |
Caloocan
NERFINISHED
ⓘ
Las Piñas NERFINISHED ⓘ Makati NERFINISHED ⓘ Malabon NERFINISHED ⓘ Mandaluyong NERFINISHED ⓘ Manila NERFINISHED ⓘ Marikina NERFINISHED ⓘ Muntinlupa NERFINISHED ⓘ Navotas NERFINISHED ⓘ Parañaque NERFINISHED ⓘ Pasay NERFINISHED ⓘ Pasig NERFINISHED ⓘ Quezon City NERFINISHED ⓘ San Juan NERFINISHED ⓘ Taguig NERFINISHED ⓘ Valenzuela NERFINISHED ⓘ |
| country | Philippines ⓘ |
| ecosystemType | watershed forest reserve ⓘ |
| environmentalProtectionStatus | protected watershed ⓘ |
| hasConservationRole |
protection of Metro Manila’s water supply
ⓘ
protection of remaining forest in Metro Manila ⓘ |
| hasFunction |
buffer storage for water distribution
ⓘ
regulating water supply for Metro Manila ⓘ storing treated water ⓘ |
| locatedIn |
La Mesa Watershed
NERFINISHED
ⓘ
La Mesa Watershed Reservation NERFINISHED ⓘ Luzon ⓘ Metro Manila ⓘ Quezon City NERFINISHED ⓘ |
| locatedNear | La Mesa Ecopark NERFINISHED ⓘ |
| managingAuthority | Metropolitan Waterworks and Sewerage System NERFINISHED ⓘ |
| nearbySettlement |
Fairview, Quezon City
NERFINISHED
ⓘ
Novaliches, Quezon City NERFINISHED ⓘ |
| operator | Metropolitan Waterworks and Sewerage System NERFINISHED ⓘ |
| partOf |
Angat River basin
NERFINISHED
ⓘ
Angat–Ipo–La Mesa water system NERFINISHED ⓘ water supply system of Metro Manila ⓘ |
| region | National Capital Region NERFINISHED ⓘ |
| suppliesWaterTo |
Metro Manila
NERFINISHED
ⓘ
Metropolitan Waterworks and Sewerage System service area ⓘ |
| use |
domestic water supply
ⓘ
municipal water supply ⓘ potable water supply ⓘ |
| waterSource |
Angat River
NERFINISHED
ⓘ
Ipo Dam 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: La Mesa Reservoir Description of subject: La Mesa Reservoir is a major water storage facility in the Philippines that supplies potable water to Metro Manila and is located within the protected La Mesa Watershed.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
La Mesa Watershed Reservoir