Pickering A
E797686
Pickering A is the older, western section of Ontario’s Pickering Nuclear Generating Station, consisting of its original CANDU reactor units.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Pickering A canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9242222 — 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: Pickering A Context triple: [Pickering Nuclear Generating Station, hasPart, Pickering A]
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A.
Pickering
Pickering is an English-origin surname borne by numerous notable figures in science, politics, and the arts.
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B.
Pickering
Pickering is a suburban city in Southern Ontario, Canada, located just east of Toronto along Lake Ontario.
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C.
Pickering
Pickering is a historic market town in North Yorkshire, England, known as a gateway to the North York Moors and for its heritage steam railway.
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D.
Pickering
Pickering is a district within the city of Liverpool in Merseyside, England, known primarily as a residential area with local amenities and community facilities.
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E.
Pickering, North Yorkshire
Pickering, North Yorkshire is a historic market town on the edge of the North York Moors in England, known as a gateway to the national park and for its heritage railway and medieval castle.
- 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: Pickering A Target entity description: Pickering A is the older, western section of Ontario’s Pickering Nuclear Generating Station, consisting of its original CANDU reactor units.
-
A.
Pickering
Pickering is an English-origin surname borne by numerous notable figures in science, politics, and the arts.
-
B.
Pickering
Pickering is a suburban city in Southern Ontario, Canada, located just east of Toronto along Lake Ontario.
-
C.
Pickering
Pickering is a historic market town in North Yorkshire, England, known as a gateway to the North York Moors and for its heritage steam railway.
-
D.
Pickering
Pickering is a district within the city of Liverpool in Merseyside, England, known primarily as a residential area with local amenities and community facilities.
-
E.
Pickering, North Yorkshire
Pickering, North Yorkshire is a historic market town on the edge of the North York Moors in England, known as a gateway to the national park and for its heritage railway and medieval castle.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
CANDU reactor facility
ⓘ
nuclear power station section ⓘ |
| adjacentFacility | Pickering B NERFINISHED ⓘ |
| commissionedUnit |
Pickering A Unit 1
NERFINISHED
ⓘ
Pickering A Unit 2 NERFINISHED ⓘ Pickering A Unit 3 NERFINISHED ⓘ Pickering A Unit 4 NERFINISHED ⓘ |
| constructionStart | 1966 ⓘ |
| containsReactorUnit |
Pickering A Unit 1
NERFINISHED
ⓘ
Pickering A Unit 2 NERFINISHED ⓘ Pickering A Unit 3 NERFINISHED ⓘ Pickering A Unit 4 NERFINISHED ⓘ |
| coolant | heavy water (D2O) ⓘ |
| coolingSource | Lake Ontario NERFINISHED ⓘ |
| country | Canada ⓘ |
| designGeneration | CANDU 450 NERFINISHED ⓘ |
| firstUnitCommissioned | 1971 ⓘ |
| fuelCycle | once-through natural uranium fuel cycle ⓘ |
| fuelType | natural uranium ⓘ |
| gridConnectionTo | Ontario electricity grid NERFINISHED ⓘ |
| gridConnectionYear | 1971 ⓘ |
| hasContainmentType | pressure tube design ⓘ |
| hasOriginalSection | western section of Pickering Nuclear Generating Station ⓘ |
| hasReactorTechnology | on-power refuelling capability ⓘ |
| isOlderSectionOf | Pickering Nuclear Generating Station NERFINISHED ⓘ |
| locatedIn | Pickering, Ontario NERFINISHED ⓘ |
| locatedOn | north shore of Lake Ontario ⓘ |
| moderator | heavy water (D2O) ⓘ |
| netElectricalCapacityPerUnit_MWe | approximately 515 ⓘ |
| numberOfReactorUnits | 4 ⓘ |
| operatedBy | Ontario Power Generation NERFINISHED ⓘ |
| ownedBy | Ontario Power Generation NERFINISHED ⓘ |
| partOf | Pickering Nuclear Generating Station NERFINISHED ⓘ |
| primaryFunction | electricity generation ⓘ |
| province | Ontario ⓘ |
| reactorSupplier | Atomic Energy of Canada Limited NERFINISHED ⓘ |
| reactorType |
CANDU
NERFINISHED
ⓘ
pressurized heavy-water reactor ⓘ |
| regulator | Canadian Nuclear Safety Commission NERFINISHED ⓘ |
| safetyFeature | containment systems for radioactive materials ⓘ |
| safetySystem | multiple redundant shutdown systems ⓘ |
| shutdownReasonUnit2 | economic and technical considerations ⓘ |
| shutdownReasonUnit3 | economic and technical considerations ⓘ |
| statusOfUnit1 | in operation (after refurbishment) ⓘ |
| statusOfUnit2 | permanently shut down ⓘ |
| statusOfUnit3 | permanently shut down ⓘ |
| statusOfUnit4 | in operation (after refurbishment) ⓘ |
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: Pickering A Description of subject: Pickering A is the older, western section of Ontario’s Pickering Nuclear Generating Station, consisting of its original CANDU reactor units.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.