X-333
E566442
X-333 is a major process building at the Portsmouth Gaseous Diffusion Plant used in the large-scale enrichment of uranium.
All labels observed (1)
| Label | Occurrences |
|---|---|
| X-333 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6086319 — 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-333 Context triple: [Portsmouth Gaseous Diffusion Plant, processBuilding, X-333]
-
A.
X-32
X-32 is an experimental Boeing-built prototype fighter aircraft developed for the Joint Strike Fighter competition.
-
B.
X3
X3 is the former designation of the standards body now known as INCITS, which oversees information technology standards in the United States.
-
C.
Xylok
Xylok is a fictional alien species, likely characterized by non-human biology and culture, to which the character Mr Smith belongs.
-
D.
l’X
l’X is the traditional nickname of École Polytechnique, France’s elite engineering grande école renowned for its rigorous scientific education and prestigious alumni.
-
E.
X the Owl
X the Owl is a friendly, inquisitive owl puppet from the Neighborhood of Make-Believe on the children's television series "Mister Rogers' Neighborhood."
- 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-333 Target entity description: X-333 is a major process building at the Portsmouth Gaseous Diffusion Plant used in the large-scale enrichment of uranium.
-
A.
X-32
X-32 is an experimental Boeing-built prototype fighter aircraft developed for the Joint Strike Fighter competition.
-
B.
X3
X3 is the former designation of the standards body now known as INCITS, which oversees information technology standards in the United States.
-
C.
Xylok
Xylok is a fictional alien species, likely characterized by non-human biology and culture, to which the character Mr Smith belongs.
-
D.
l’X
l’X is the traditional nickname of École Polytechnique, France’s elite engineering grande école renowned for its rigorous scientific education and prestigious alumni.
-
E.
X the Owl
X the Owl is a friendly, inquisitive owl puppet from the Neighborhood of Make-Believe on the children's television series "Mister Rogers' Neighborhood."
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
industrial building
ⓘ
uranium enrichment facility building ⓘ |
| associatedWith |
nuclear fuel cycle
ⓘ
uranium hexafluoride (UF6) ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| environmentalIssue |
decontamination and decommissioning requirements
ⓘ
legacy nuclear materials management ⓘ |
| hasFunction |
housing gaseous diffusion cascades
ⓘ
processing uranium feed material ⓘ |
| industrialSector |
energy sector
ⓘ
nuclear industry ⓘ |
| locatedIn |
Piketon, Ohio
ⓘ
Portsmouth Gaseous Diffusion Plant ⓘ |
| managedBy | U.S. Department of Energy contractors ⓘ |
| materialHandled |
uranium
ⓘ
uranium hexafluoride gas ⓘ |
| ownership |
U.S. government
ⓘ
linked to:
United States government
|
| partOf |
Portsmouth Gaseous Diffusion Plant
ⓘ
Portsmouth Site nuclear complex ⓘ U.S. uranium enrichment complex ⓘ |
| partOfProcess |
production of low-enriched uranium
ⓘ
uranium enrichment for nuclear reactors ⓘ |
| regulatedBy |
U.S. Department of Energy
ⓘ
U.S. Nuclear Regulatory Commission ⓘ |
| role | major process building ⓘ |
| safetyConcern |
chemical hazard from uranium hexafluoride
ⓘ
radiological contamination risk ⓘ |
| technology | gaseous diffusion ⓘ |
| usedFor |
large-scale enrichment of uranium
ⓘ
uranium isotope separation ⓘ |
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-333 Description of subject: X-333 is a major process building at the Portsmouth Gaseous Diffusion Plant used in the large-scale enrichment of uranium.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Portsmouth Gaseous Diffusion Plant (historical)