Triple
T6086325
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Portsmouth Gaseous Diffusion Plant |
E135646
|
entity |
| Predicate | managedBy |
P86
|
FINISHED |
| Object |
Fluor-BWXT Portsmouth
Fluor-BWXT Portsmouth is a contractor consortium responsible for environmental cleanup, decontamination, and decommissioning activities at the former Portsmouth Gaseous Diffusion Plant in Ohio.
|
E566444
|
NE FINISHED |
How this triple was built (4 steps)
Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.
NER
Named-entity recognition
gpt-5-mini
Instruction
Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).
Input
Phrase: Fluor-BWXT Portsmouth | Statement: [Portsmouth Gaseous Diffusion Plant, managedBy, Fluor-BWXT Portsmouth]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Fluor-BWXT Portsmouth Context triple: [Portsmouth Gaseous Diffusion Plant, managedBy, Fluor-BWXT Portsmouth]
-
A.
Portsmouth Gaseous Diffusion Plant (historical)
The Portsmouth Gaseous Diffusion Plant was a major U.S. uranium enrichment facility in Ohio that played a key role in producing enriched uranium for nuclear weapons and commercial nuclear power during the Cold War.
-
B.
Paducah Gaseous Diffusion Plant
The Paducah Gaseous Diffusion Plant is a former U.S. Department of Energy uranium enrichment facility in western Kentucky that played a major role in producing enriched uranium for nuclear power and defense.
-
C.
Fernald uranium plant
The Fernald uranium plant was a U.S. Department of Energy facility near Cincinnati, Ohio, that processed uranium for nuclear weapons production and later became a major environmental cleanup site.
-
D.
Savannah River Site
Savannah River Site is a U.S. Department of Energy nuclear reservation in South Carolina historically used for producing materials for nuclear weapons and now focused on environmental cleanup and nuclear materials management.
-
E.
Shippingport Atomic Power Station
Shippingport Atomic Power Station was the first full-scale commercial nuclear power plant in the United States and a landmark project that launched the nation’s civilian nuclear energy program.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg
Description generation
gpt-5.1
Instruction
Generate a one-sentence description of the target entity. You are given a context triple in the form (subject, predicate, object), where the object is the target entity. # Instructions Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. Avoid repeating the information from the triple, unless really essential. # Response Format Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Fluor-BWXT Portsmouth Triple: [Portsmouth Gaseous Diffusion Plant, managedBy, Fluor-BWXT Portsmouth]
Generated description
Fluor-BWXT Portsmouth is a contractor consortium responsible for environmental cleanup, decontamination, and decommissioning activities at the former Portsmouth Gaseous Diffusion Plant in Ohio.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Fluor-BWXT Portsmouth Target entity description: Fluor-BWXT Portsmouth is a contractor consortium responsible for environmental cleanup, decontamination, and decommissioning activities at the former Portsmouth Gaseous Diffusion Plant in Ohio.
-
A.
Portsmouth Gaseous Diffusion Plant (historical)
The Portsmouth Gaseous Diffusion Plant was a major U.S. uranium enrichment facility in Ohio that played a key role in producing enriched uranium for nuclear weapons and commercial nuclear power during the Cold War.
-
B.
Paducah Gaseous Diffusion Plant
The Paducah Gaseous Diffusion Plant is a former U.S. Department of Energy uranium enrichment facility in western Kentucky that played a major role in producing enriched uranium for nuclear power and defense.
-
C.
Fernald uranium plant
The Fernald uranium plant was a U.S. Department of Energy facility near Cincinnati, Ohio, that processed uranium for nuclear weapons production and later became a major environmental cleanup site.
-
D.
Savannah River Site
Savannah River Site is a U.S. Department of Energy nuclear reservation in South Carolina historically used for producing materials for nuclear weapons and now focused on environmental cleanup and nuclear materials management.
-
E.
Shippingport Atomic Power Station
Shippingport Atomic Power Station was the first full-scale commercial nuclear power plant in the United States and a landmark project that launched the nation’s civilian nuclear energy program.
- F. None of above. chosen
Provenance (5 batches)
The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.
| Step | Stage | Batch ID | Status | When |
|---|---|---|---|---|
| creating | Elicitation | batch_69c0087bcc788190b20f093d3a6c60ec |
completed | March 22, 2026, 3:19 p.m. |
| NER | Named-entity recognition | batch_69c0578a8b8081908490e447ae3419f9 |
completed | March 22, 2026, 8:56 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c11d60e824819098a9f5fc5cc00be4 |
completed | March 23, 2026, 11 a.m. |
| NEDg | Description generation | batch_69c11e4454948190a8f4643cb55e673a |
completed | March 23, 2026, 11:04 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69c11ec554688190bfe184608944a15e |
completed | March 23, 2026, 11:06 a.m. |
Created at: March 22, 2026, 4:12 p.m.