Three Mile Island Nuclear Generating Station
E230650
Three Mile Island Nuclear Generating Station is a former nuclear power plant in Pennsylvania best known as the site of the 1979 partial reactor meltdown, the most serious accident in U.S. commercial nuclear power history.
All labels observed (9)
How this entity was disambiguated
This entity first appeared as the object of triple T2077429 — 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: Three Mile Island Nuclear Generating Station Context triple: [Susquehanna River, associatedWith, Three Mile Island Nuclear Generating Station]
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A.
Hope Creek Nuclear Generating Station
Hope Creek Nuclear Generating Station is a single-unit boiling water nuclear power plant located in Lower Alloways Creek Township, New Jersey, that generates electricity for the regional grid.
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B.
Calvert Cliffs Nuclear Power Plant
Calvert Cliffs Nuclear Power Plant is a two-unit pressurized water nuclear power station on the western shore of the Chesapeake Bay that generates electricity for the Mid-Atlantic region.
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C.
Hatch Nuclear Power Plant
Hatch Nuclear Power Plant is a commercial nuclear power generating facility in Georgia that supplies electricity to the regional grid as part of Southern Company's energy portfolio.
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D.
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.
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E.
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.
- 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: Three Mile Island Nuclear Generating Station Target entity description: Three Mile Island Nuclear Generating Station is a former nuclear power plant in Pennsylvania best known as the site of the 1979 partial reactor meltdown, the most serious accident in U.S. commercial nuclear power history.
-
A.
Hope Creek Nuclear Generating Station
Hope Creek Nuclear Generating Station is a single-unit boiling water nuclear power plant located in Lower Alloways Creek Township, New Jersey, that generates electricity for the regional grid.
-
B.
Calvert Cliffs Nuclear Power Plant
Calvert Cliffs Nuclear Power Plant is a two-unit pressurized water nuclear power station on the western shore of the Chesapeake Bay that generates electricity for the Mid-Atlantic region.
-
C.
Hatch Nuclear Power Plant
Hatch Nuclear Power Plant is a commercial nuclear power generating facility in Georgia that supplies electricity to the regional grid as part of Southern Company's energy portfolio.
-
D.
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.
-
E.
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.
- F. None of above. chosen
Statements (49)
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: Three Mile Island Nuclear Generating Station Description of subject: Three Mile Island Nuclear Generating Station is a former nuclear power plant in Pennsylvania best known as the site of the 1979 partial reactor meltdown, the most serious accident in U.S. commercial nuclear power history.
Referenced by (15)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Three Mile Island accident
this entity surface form:
Three Mile Island accident response
this entity surface form:
Three Mile Island accident
Three Mile Island Nuclear Generating Station
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locatedOn
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Three Mile Island Nuclear Generating Station
self-linksurface differs
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this entity surface form:
Three Mile Island
Three Mile Island Nuclear Generating Station
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hasReactorUnit
→
Three Mile Island Nuclear Generating Station
self-linksurface differs
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this entity surface form:
Three Mile Island Unit 1
Three Mile Island Nuclear Generating Station
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hasReactorUnit
→
Three Mile Island Nuclear Generating Station
self-linksurface differs
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this entity surface form:
Three Mile Island Unit 2
this entity surface form:
Three Mile Island accident
Middletown, Pennsylvania, United States
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proximityTo
→
Three Mile Island Nuclear Generating Station
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subject surface form:
Middletown, Pennsylvania
subject surface form:
Middletown, Pennsylvania
this entity surface form:
Three Mile Island
Middletown, Pennsylvania, United States
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hasNearbyFacility
→
Three Mile Island Nuclear Generating Station
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subject surface form:
Middletown, Pennsylvania
Middletown, Pennsylvania, United States
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hasNearbyEventSite
→
Three Mile Island Nuclear Generating Station
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subject surface form:
Middletown, Pennsylvania
this entity surface form:
Three Mile Island accident site
this entity surface form:
Three Mile Island Nuclear Generating Station Unit 1
this entity surface form:
Three Mile Island Nuclear Generating Station Unit 2