Alexander Generating Station
E255685
Alexander Generating Station is a hydroelectric power facility located on the Nipigon River in Ontario, Canada, that generates electricity from the river’s flow.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Alexander Generating Station canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2319660 — 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: Alexander Generating Station Context triple: [Nipigon River, hasHydroelectricDam, Alexander Generating Station]
-
A.
Pickering Nuclear Generating Station
Pickering Nuclear Generating Station is a large Canadian nuclear power plant on the shore of Lake Ontario that has been a major source of electricity for the Greater Toronto Area.
-
B.
Glenwood Power Station
Glenwood Power Station is an early 20th-century, now-abandoned industrial power plant on the Hudson River in Yonkers, New York, noted for its grand Beaux-Arts architecture and historic significance.
-
C.
Enrico Fermi Nuclear Generating Station
The Enrico Fermi Nuclear Generating Station is a nuclear power plant complex located on the shore of Lake Erie in Michigan, known for housing multiple reactor units including the Fermi 2 boiling water reactor.
-
D.
Kingston Fossil Plant
Kingston Fossil Plant is a large coal-fired power plant operated by the Tennessee Valley Authority, known for its significant electricity generation and for a major coal ash spill in 2008.
-
E.
Salem Nuclear Power Plant
Salem Nuclear Power Plant is a commercial nuclear power station in Lower Alloways Creek Township, New Jersey, that generates electricity using pressurized water reactors along the Delaware River.
- 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: Alexander Generating Station Target entity description: Alexander Generating Station is a hydroelectric power facility located on the Nipigon River in Ontario, Canada, that generates electricity from the river’s flow.
-
A.
Pickering Nuclear Generating Station
Pickering Nuclear Generating Station is a large Canadian nuclear power plant on the shore of Lake Ontario that has been a major source of electricity for the Greater Toronto Area.
-
B.
Glenwood Power Station
Glenwood Power Station is an early 20th-century, now-abandoned industrial power plant on the Hudson River in Yonkers, New York, noted for its grand Beaux-Arts architecture and historic significance.
-
C.
Enrico Fermi Nuclear Generating Station
The Enrico Fermi Nuclear Generating Station is a nuclear power plant complex located on the shore of Lake Erie in Michigan, known for housing multiple reactor units including the Fermi 2 boiling water reactor.
-
D.
Kingston Fossil Plant
Kingston Fossil Plant is a large coal-fired power plant operated by the Tennessee Valley Authority, known for its significant electricity generation and for a major coal ash spill in 2008.
-
E.
Salem Nuclear Power Plant
Salem Nuclear Power Plant is a commercial nuclear power station in Lower Alloways Creek Township, New Jersey, that generates electricity using pressurized water reactors along the Delaware River.
- F. None of above. chosen
Statements (27)
| Predicate | Object |
|---|---|
| instanceOf |
hydroelectric power station
ⓘ
power generation facility ⓘ |
| basinCountry | Canada ⓘ |
| continent | North America ⓘ |
| country | Canada ⓘ |
| energyConversion | potential and kinetic energy of water to electrical energy ⓘ |
| gridConnection |
Ontario electricity grid
ⓘ
surface form:
Ontario electrical grid
|
| hasInfrastructureType |
dam
ⓘ
powerhouse ⓘ spillway ⓘ |
| hasPowerPlantType | run-of-river hydroelectric plant ⓘ |
| industry | electric power industry ⓘ |
| isInWatershed |
Great Lakes–St. Lawrence system
ⓘ
surface form:
Great Lakes–St. Lawrence River basin
|
| locatedIn |
Nipigon, Ontario
ⓘ
Ontario ⓘ |
| locatedInAdministrativeTerritory | Thunder Bay District ⓘ |
| locatedInCountrySubdivision |
Ontario
ⓘ
surface form:
Province of Ontario
|
| locatedOnRiver | Nipigon River ⓘ |
| operationalStatus | operational ⓘ |
| partOf | Ontario power system ⓘ |
| primaryFunction | electricity generation ⓘ |
| sector | energy sector ⓘ |
| uses | river flow ⓘ |
| usesEnergySource |
hydropower
ⓘ
renewable energy ⓘ |
| watercourse | Nipigon River ⓘ |
| waterSource | Nipigon 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: Alexander Generating Station Description of subject: Alexander Generating Station is a hydroelectric power facility located on the Nipigon River in Ontario, Canada, that generates electricity from the river’s flow.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.