F Canyon
E462105
F Canyon is a large nuclear materials processing facility at the Savannah River Site in South Carolina, historically used for the chemical separation and recovery of plutonium and other defense-related nuclear materials.
All labels observed (1)
| Label | Occurrences |
|---|---|
| F Canyon canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4703932 — 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: F Canyon Context triple: [H Canyon, associatedFacility, F Canyon]
-
A.
H Canyon
H Canyon is a large nuclear chemical separations facility at the Savannah River Site used for processing and recovering nuclear materials.
-
B.
Canyon
Canyon is a small city in the Texas Panhandle known as the home of West Texas A&M University and a gateway to Palo Duro Canyon State Park.
-
C.
Canyon
Canyon is a famous 1959 combine painting by Robert Rauschenberg that merges traditional painting with found objects, including a stuffed bald eagle, exemplifying his radical blurring of art and everyday materials.
-
D.
Fountain Canyon
Fountain Canyon is a notable sub-canyon within British Columbia’s Fraser Canyon, characterized by its rugged terrain and steep river-carved walls.
-
E.
Logan Canyon
Logan Canyon is a scenic, narrow mountain gorge in northern Utah known for its dramatic limestone cliffs, outdoor recreation, and as the main route between Logan and Bear 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: F Canyon Target entity description: F Canyon is a large nuclear materials processing facility at the Savannah River Site in South Carolina, historically used for the chemical separation and recovery of plutonium and other defense-related nuclear materials.
-
A.
H Canyon
H Canyon is a large nuclear chemical separations facility at the Savannah River Site used for processing and recovering nuclear materials.
-
B.
Canyon
Canyon is a famous 1959 combine painting by Robert Rauschenberg that merges traditional painting with found objects, including a stuffed bald eagle, exemplifying his radical blurring of art and everyday materials.
-
C.
Canyon
Canyon is a small city in the Texas Panhandle known as the home of West Texas A&M University and a gateway to Palo Duro Canyon State Park.
-
D.
Fountain Canyon
Fountain Canyon is a notable sub-canyon within British Columbia’s Fraser Canyon, characterized by its rugged terrain and steep river-carved walls.
-
E.
Logan Canyon
Logan Canyon is a scenic, narrow mountain gorge in northern Utah known for its dramatic limestone cliffs, outdoor recreation, and as the main route between Logan and Bear Lake.
- F. None of above. chosen
Statements (42)
| Predicate | Object |
|---|---|
| instanceOf |
nuclear materials processing facility
ⓘ
reprocessing plant ⓘ |
| associatedWith |
Savannah River Site reprocessing operations
ⓘ
plutonium production for national defense ⓘ |
| commissioned | 1950s ⓘ |
| constructionStart | 1950s ⓘ |
| contains |
remote handling equipment
ⓘ
shielded process cells ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| decommissioningActivity |
equipment decontamination
ⓘ
facility stabilization ⓘ preparation for long-term closure ⓘ |
| designedFor | large-scale aqueous chemical processing ⓘ |
| environmentalConcern |
management of high-level waste
ⓘ
radioactive liquid waste generation ⓘ |
| hasType | canyon-type processing building ⓘ |
| historicalUse |
processing of irradiated targets for special nuclear materials
ⓘ
separation and recovery of plutonium from production reactors ⓘ |
| locatedIn |
South Carolina
ⓘ
United States of America ⓘ
surface form:
United States
|
| location | Savannah River Site NERFINISHED ⓘ |
| near |
Aiken, South Carolina
NERFINISHED
ⓘ
Augusta, Georgia NERFINISHED ⓘ |
| operatedBy | U.S. Department of Energy contractors NERFINISHED ⓘ |
| ownedBy | United States Department of Energy NERFINISHED ⓘ |
| partOf |
Savannah River Site production complex
NERFINISHED
ⓘ
U.S. Cold War nuclear weapons infrastructure ⓘ |
| primaryProduct |
special nuclear materials for defense
ⓘ
weapons-grade plutonium ⓘ |
| regulatoryOversightBy |
Defense Nuclear Facilities Safety Board
NERFINISHED
ⓘ
U.S. Department of Energy NERFINISHED ⓘ |
| relatedFacility | H Canyon NERFINISHED ⓘ |
| safetyFeature |
massive concrete shielding
ⓘ
ventilation and filtration systems ⓘ |
| status |
shut down for production operations
ⓘ
under deactivation and decommissioning activities ⓘ |
| usedDuring | Cold War ⓘ |
| usedFor |
chemical separation of irradiated nuclear fuel
ⓘ
production of defense-related nuclear materials ⓘ recovery of plutonium ⓘ recovery of uranium ⓘ support of U.S. nuclear weapons programs ⓘ |
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: F Canyon Description of subject: F Canyon is a large nuclear materials processing facility at the Savannah River Site in South Carolina, historically used for the chemical separation and recovery of plutonium and other defense-related nuclear materials.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.