Granger Dam
E856884
Granger Dam is a flood-control and water-management structure located on the San Gabriel River in Southern California.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Granger Dam canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9867473 — 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: Granger Dam Context triple: [San Gabriel River, impoundedBy, Granger Dam]
-
A.
Harriman Dam
Harriman Dam is a hydroelectric dam in Vermont that impounds the Deerfield River to form Harriman Reservoir, one of the state’s largest lakes.
-
B.
Jennings Randolph Dam
Jennings Randolph Dam is a large earthen flood-control and water-supply dam on the North Branch Potomac River along the Maryland–West Virginia border in the United States.
-
C.
Goodwin Dam
Goodwin Dam is a concrete gravity diversion dam on California’s Stanislaus River that helps regulate river flow and supplies irrigation water to surrounding agricultural areas.
-
D.
J. Percy Priest Dam
J. Percy Priest Dam is a U.S. Army Corps of Engineers flood control and hydroelectric dam on the Stones River near Nashville, Tennessee.
-
E.
La Grange Dam
La Grange Dam is a historic diversion dam on California’s Tuolumne River that supplies irrigation water to agricultural lands in the San Joaquin Valley.
- 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: Granger Dam Target entity description: Granger Dam is a flood-control and water-management structure located on the San Gabriel River in Southern California.
-
A.
Harriman Dam
Harriman Dam is a hydroelectric dam in Vermont that impounds the Deerfield River to form Harriman Reservoir, one of the state’s largest lakes.
-
B.
Jennings Randolph Dam
Jennings Randolph Dam is a large earthen flood-control and water-supply dam on the North Branch Potomac River along the Maryland–West Virginia border in the United States.
-
C.
Goodwin Dam
Goodwin Dam is a concrete gravity diversion dam on California’s Stanislaus River that helps regulate river flow and supplies irrigation water to surrounding agricultural areas.
-
D.
J. Percy Priest Dam
J. Percy Priest Dam is a U.S. Army Corps of Engineers flood control and hydroelectric dam on the Stones River near Nashville, Tennessee.
-
E.
La Grange Dam
La Grange Dam is a historic diversion dam on California’s Tuolumne River that supplies irrigation water to agricultural lands in the San Joaquin Valley.
- F. None of above. chosen
Statements (14)
| Predicate | Object |
|---|---|
| instanceOf |
dam
ⓘ
flood-control structure ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| hasPurpose |
manage water resources
ⓘ
reduce downstream flooding risk ⓘ regulate river flow ⓘ |
| locatedIn |
California
ⓘ
linked to:
California, United States
Southern California ⓘ United States ⓘ
linked to:
United States of America
|
| locatedOn | San Gabriel River ⓘ |
| primaryFunction |
flood control
ⓘ
water management ⓘ |
| region | Southern California ⓘ |
| riverBasin |
San Gabriel River basin
ⓘ
linked to:
San Gabriel River
|
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: Granger Dam Description of subject: Granger Dam is a flood-control and water-management structure located on the San Gabriel River in Southern California.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.