Carraízo reservoir
E253128
Carraízo Reservoir is a major water storage lake in Puerto Rico that serves as a key source of drinking water and flood control for the San Juan metropolitan area.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Carraízo reservoir canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2306763 — 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: Carraízo reservoir Context triple: [Canóvanas, locatedNear, Carraízo reservoir]
-
A.
Almatti Reservoir
Almatti Reservoir is a major water body in Karnataka, India, formed on the Krishna River and used for irrigation, power generation, and regional water supply.
-
B.
Koka Reservoir
Koka Reservoir is a major artificial lake in Ethiopia formed by the Koka Dam on the Awash River, serving as an important source of hydroelectric power, irrigation, and fisheries.
-
C.
Tominé Reservoir
Tominé Reservoir is a large artificial lake in Colombia’s Cundinamarca department, known for supplying water to Bogotá and serving as a popular site for sailing and other water sports.
-
D.
Ruza Reservoir
Ruza Reservoir is a large artificial lake in the Moscow region of Russia, created by damming the Ruza River to serve as a key source of water supply and recreation.
-
E.
Riosucio
Riosucio is a Colombian town known for its rich cultural traditions and the famous Carnival of Riosucio, celebrated in the Caldas Department.
- 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: Carraízo reservoir Target entity description: Carraízo Reservoir is a major water storage lake in Puerto Rico that serves as a key source of drinking water and flood control for the San Juan metropolitan area.
-
A.
Almatti Reservoir
Almatti Reservoir is a major water body in Karnataka, India, formed on the Krishna River and used for irrigation, power generation, and regional water supply.
-
B.
Koka Reservoir
Koka Reservoir is a major artificial lake in Ethiopia formed by the Koka Dam on the Awash River, serving as an important source of hydroelectric power, irrigation, and fisheries.
-
C.
Tominé Reservoir
Tominé Reservoir is a large artificial lake in Colombia’s Cundinamarca department, known for supplying water to Bogotá and serving as a popular site for sailing and other water sports.
-
D.
Ruza Reservoir
Ruza Reservoir is a large artificial lake in the Moscow region of Russia, created by damming the Ruza River to serve as a key source of water supply and recreation.
-
E.
Riosucio
Riosucio is a Colombian town known for its rich cultural traditions and the famous Carnival of Riosucio, celebrated in the Caldas Department.
- F. None of above. chosen
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
artificial lake
ⓘ
reservoir ⓘ |
| affects | water availability in San Juan metropolitan area ⓘ |
| basinCountry | Puerto Rico ⓘ |
| constructionPurpose |
flood mitigation
ⓘ
municipal water supply ⓘ |
| continent | North America ⓘ |
| country | Puerto Rico ⓘ |
| createdBy | Carraízo Dam ⓘ |
| hasEnvironmentalIssue |
sediment accumulation reducing storage capacity
ⓘ
water quality concerns during low levels ⓘ |
| hasFunction |
flood regulation
ⓘ
sediment control ⓘ water storage ⓘ |
| hasInfrastructure | Carraízo Dam ⓘ |
| hasLocalName | Embalse Carraízo ⓘ |
| isCriticalInfrastructureFor |
San Juan–Caguas–Guaynabo metropolitan area
ⓘ
surface form:
San Juan metropolitan area
|
| isKeyComponentOf | Puerto Rico public water system ⓘ |
| isMajorSourceOf | potable water for San Juan metropolitan area ⓘ |
| languageOfName | Spanish ⓘ |
| locatedIn |
Trujillo Alto
ⓘ
surface form:
Trujillo Alto, Puerto Rico
Trujillo Alto ⓘ
surface form:
municipality of Trujillo Alto
|
| locatedInHydrologicalBasin |
Río Grande de Loíza
ⓘ
surface form:
Río Grande de Loíza basin
|
| locatedInTerritory | unincorporated territory of the United States ⓘ |
| locatedOnRiver | Río Grande de Loíza ⓘ |
| managedBy |
Puerto Rico Aqueducts and Sewers Authority
ⓘ
surface form:
Puerto Rico Aqueduct and Sewer Authority
|
| near | San Juan, Puerto Rico ⓘ |
| operator |
Puerto Rico Aqueducts and Sewers Authority
ⓘ
surface form:
Puerto Rico Aqueduct and Sewer Authority
|
| partOf | San Juan water supply system ⓘ |
| primaryUse |
drinking water supply
ⓘ
flood control ⓘ |
| region | Caribbean ⓘ |
| serves |
Canóvanas, Puerto Rico
ⓘ
Carolina, Puerto Rico ⓘ Gurabo, Puerto Rico ⓘ Loíza, Puerto Rico ⓘ San Juan–Caguas–Guaynabo metropolitan area ⓘ
surface form:
San Juan metropolitan area
Trujillo Alto ⓘ
surface form:
Trujillo Alto, Puerto Rico
|
| subjectTo |
drought-related water rationing
ⓘ
sedimentation ⓘ |
| usedFor |
flood control of Río Grande de Loíza
ⓘ
public water supply ⓘ |
| waterType | freshwater ⓘ |
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: Carraízo reservoir Description of subject: Carraízo Reservoir is a major water storage lake in Puerto Rico that serves as a key source of drinking water and flood control for the San Juan metropolitan area.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.