X-326
E566443
X-326 is a major uranium enrichment process building at the Portsmouth Gaseous Diffusion Plant in Ohio, historically used for large-scale nuclear fuel production.
All labels observed (1)
| Label | Occurrences |
|---|---|
| X-326 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6086321 — 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: X-326 Context triple: [Portsmouth Gaseous Diffusion Plant, processBuilding, X-326]
-
A.
X-32
X-32 is an experimental Boeing-built prototype fighter aircraft developed for the Joint Strike Fighter competition.
-
B.
X-20
X-20 was an experimental U.S. Air Force spaceplane project from the early Cold War era intended to test reusable, piloted orbital and suborbital flight before being canceled in the 1960s.
-
C.
X3
X3 is the former designation of the standards body now known as INCITS, which oversees information technology standards in the United States.
-
D.
Hale X
Hale X is a small satellite crater located near the larger Hale crater on the Moon’s far side.
-
E.
Xelb
Xelb is the former Arabic name for the Portuguese city of Silves, a historically significant town in the Algarve region.
- 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: X-326 Target entity description: X-326 is a major uranium enrichment process building at the Portsmouth Gaseous Diffusion Plant in Ohio, historically used for large-scale nuclear fuel production.
-
A.
X-32
X-32 is an experimental Boeing-built prototype fighter aircraft developed for the Joint Strike Fighter competition.
-
B.
X-20
X-20 was an experimental U.S. Air Force spaceplane project from the early Cold War era intended to test reusable, piloted orbital and suborbital flight before being canceled in the 1960s.
-
C.
X3
X3 is the former designation of the standards body now known as INCITS, which oversees information technology standards in the United States.
-
D.
Hale X
Hale X is a small satellite crater located near the larger Hale crater on the Moon’s far side.
-
E.
Xelb
Xelb is the former Arabic name for the Portuguese city of Silves, a historically significant town in the Algarve region.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
industrial building
ⓘ
uranium enrichment facility building ⓘ |
| associatedHazardClass | nuclear facility with radiological hazards ⓘ |
| associatedWithProgram |
United States nuclear energy program
NERFINISHED
ⓘ
United States uranium enrichment program NERFINISHED ⓘ |
| associatedWithTechnology | gaseous diffusion ⓘ |
| constructionMethod | steel-frame industrial structure ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| energySourceType | electric-powered industrial process ⓘ |
| environmentalConcern |
hazardous chemical contamination
ⓘ
radioactive contamination ⓘ |
| geographicRegion | southern Ohio NERFINISHED ⓘ |
| hasFunction |
process uranium feed material into enriched product
ⓘ
support nuclear fuel production for power reactors ⓘ |
| hasInfrastructure |
cascade halls for enrichment stages
ⓘ
process piping for uranium hexafluoride ⓘ radiological monitoring systems ⓘ ventilation and off-gas systems ⓘ |
| historicalUse | large-scale nuclear fuel production ⓘ |
| industrialCategory | nuclear fuel cycle facility ⓘ |
| locatedAtFacilityType | gaseous diffusion plant ⓘ |
| locatedIn |
Piketon, Ohio
NERFINISHED
ⓘ
United States of America ⓘ
surface form:
United States
|
| locatedOnSiteType | federal nuclear reservation ⓘ |
| materialHandled |
depleted uranium hexafluoride
ⓘ
enriched uranium ⓘ uranium hexafluoride ⓘ |
| near |
Piketon village center
NERFINISHED
ⓘ
Scioto River valley NERFINISHED ⓘ |
| operator | United States Department of Energy NERFINISHED ⓘ |
| ownedBy | United States Department of Energy NERFINISHED ⓘ |
| partOf |
Portsmouth Gaseous Diffusion Plant
NERFINISHED
ⓘ
United States nuclear fuel cycle infrastructure NERFINISHED ⓘ |
| partOfComplex | Portsmouth uranium enrichment complex NERFINISHED ⓘ |
| regulatoryOversightBy |
Ohio Environmental Protection Agency
NERFINISHED
ⓘ
United States Environmental Protection Agency NERFINISHED ⓘ United States Nuclear Regulatory Commission NERFINISHED ⓘ |
| riskCategory | nuclear legacy facility ⓘ |
| safetyConcern |
asbestos-containing materials
ⓘ
chemical hazards ⓘ radiological contamination ⓘ |
| securityLevel | high-security nuclear facility ⓘ |
| status | historical uranium enrichment building ⓘ |
| subjectTo |
federal decontamination and decommissioning requirements
ⓘ
nuclear material safeguards ⓘ |
| usedFor |
gaseous diffusion uranium enrichment
ⓘ
nuclear fuel production ⓘ uranium enrichment ⓘ |
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: X-326 Description of subject: X-326 is a major uranium enrichment process building at the Portsmouth Gaseous Diffusion Plant in Ohio, historically used for large-scale nuclear fuel production.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Portsmouth Gaseous Diffusion Plant