Glen Morris Dam
E949764
Glen Morris Dam is a flood-control and water-management structure on Ontario’s Grand River, helping regulate river flow and reduce downstream flooding.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Glen Morris Dam canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T11132431 — 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: Glen Morris Dam Context triple: [Grand River, hasDam, Glen Morris Dam]
-
A.
Milner Dam
Milner Dam is an early 20th-century irrigation and hydroelectric dam on the Snake River in southern Idaho that helps divert water for agriculture and power generation.
-
B.
Fengman Dam
Fengman Dam is a large hydroelectric gravity dam on the Songhua River in Jilin Province, China, known for its significant role in regional power generation and flood control.
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C.
Merwin Dam
Merwin Dam is a hydroelectric dam on Washington State’s Lewis River that forms Lake Merwin and generates power for the region.
-
D.
Garrison Dam
Garrison Dam is a large hydroelectric and flood-control dam on the Missouri River in North Dakota, forming Lake Sakakawea, one of the largest man-made reservoirs in the United States.
-
E.
Morris Sheppard Dam
Morris Sheppard Dam is a large hydroelectric and flood-control structure in Texas that impounds the Brazos River to form Possum Kingdom Lake.
- 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: Glen Morris Dam Target entity description: Glen Morris Dam is a flood-control and water-management structure on Ontario’s Grand River, helping regulate river flow and reduce downstream flooding.
-
A.
Milner Dam
Milner Dam is an early 20th-century irrigation and hydroelectric dam on the Snake River in southern Idaho that helps divert water for agriculture and power generation.
-
B.
Fengman Dam
Fengman Dam is a large hydroelectric gravity dam on the Songhua River in Jilin Province, China, known for its significant role in regional power generation and flood control.
-
C.
Merwin Dam
Merwin Dam is a hydroelectric dam on Washington State’s Lewis River that forms Lake Merwin and generates power for the region.
-
D.
Garrison Dam
Garrison Dam is a large hydroelectric and flood-control dam on the Missouri River in North Dakota, forming Lake Sakakawea, one of the largest man-made reservoirs in the United States.
-
E.
Morris Sheppard Dam
Morris Sheppard Dam is a large hydroelectric and flood-control structure in Texas that impounds the Brazos River to form Possum Kingdom Lake.
- F. None of above. chosen
Statements (12)
| Predicate | Object |
|---|---|
| instanceOf |
dam
ⓘ
flood-control structure ⓘ water-management structure ⓘ |
| hasFunction |
reduction of downstream flooding
ⓘ
regulation of river flow ⓘ |
| hasName | Glen Morris Dam ⓘ |
| hasPrimaryFunction | flood control ⓘ |
| hasSecondaryFunction | water management ⓘ |
| locatedInAdministrativeTerritory | Ontario ⓘ |
| locatedInCountry | Canada ⓘ |
| locatedOnWatercourse | Grand River ⓘ |
| partOf | Grand River watershed ⓘ |
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: Glen Morris Dam Description of subject: Glen Morris Dam is a flood-control and water-management structure on Ontario’s Grand River, helping regulate river flow and reduce downstream flooding.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.