Triple
T1363726
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Secret City |
E29154
|
entity |
| Predicate | hostedFacility |
P19019
|
FINISHED |
| Object | K-25 gaseous diffusion plant |
E37185
|
NE FINISHED |
How this triple was built (2 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: K-25 gaseous diffusion plant | Statement: [Secret City, hostedFacility, K-25 gaseous diffusion plant]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: K-25 gaseous diffusion plant Context triple: [Secret City, hostedFacility, K-25 gaseous diffusion plant]
-
A.
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.
-
B.
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.
-
C.
K-25 Project
chosen
The K-25 Project was a World War II–era Manhattan Project effort to build and operate a massive gaseous diffusion plant for uranium enrichment in Oak Ridge, Tennessee.
-
D.
S-50 thermal diffusion plant
The S-50 thermal diffusion plant was a World War II facility at Oak Ridge used in the Manhattan Project to enrich uranium through thermal diffusion as part of the U.S. atomic bomb program.
-
E.
Pantex Plant
Pantex Plant is a U.S. nuclear weapons facility in Texas responsible for the assembly, disassembly, and maintenance of the nation’s nuclear warheads.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (3 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_69a498d77abc8190913bf57e5f51d2c4 |
completed | March 1, 2026, 7:51 p.m. |
| NER | Named-entity recognition | batch_69a4c48e6534819090d23f3cc25093ae |
completed | March 1, 2026, 10:58 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ad01518d5481908cf14b24dde8342b |
completed | March 8, 2026, 4:55 a.m. |
Created at: March 1, 2026, 7:57 p.m.