Triple

T842140
Position Surface form Disambiguated ID Type / Status
Subject Savannah River Site E18199 entity
Predicate formerFacility P4380 FINISHED
Object C Reactor
C Reactor is a decommissioned nuclear production reactor at the Savannah River Site in South Carolina that was used primarily for producing materials for nuclear weapons during the Cold War.
 E104877 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: C Reactor | Statement: [Savannah River Site, formerFacility, C Reactor]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: C Reactor
Context triple: [Savannah River Site, formerFacility, C Reactor]
  • A. C Reactor
    C Reactor is one of the early plutonium production reactors built and operated at the Hanford Site in Washington as part of the U.S. Manhattan Project and Cold War nuclear weapons program.
  • B. L Reactor
    L Reactor was a heavy water–moderated nuclear production reactor at the Savannah River Site in South Carolina, historically used to produce materials such as plutonium and tritium for the U.S. nuclear weapons program.
  • C. F Reactor
    F Reactor was one of the early plutonium production reactors at the Hanford Site in Washington, built during the Manhattan Project to support the U.S. nuclear weapons program.
  • D. P Reactor
    P Reactor was a plutonium and tritium production nuclear reactor at the U.S. Department of Energy’s Savannah River Site in South Carolina, built during the Cold War to support the nation’s nuclear weapons program.
  • E. R Reactor
    R Reactor was one of the plutonium and tritium production nuclear reactors that operated at the U.S. Department of Energy’s Savannah River Site during the Cold War.
  • 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: C Reactor
Triple: [Savannah River Site, formerFacility, C Reactor]
Generated description
C Reactor is a decommissioned nuclear production reactor at the Savannah River Site in South Carolina that was used primarily for producing materials for nuclear weapons during the Cold War.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: C Reactor
Target entity description: C Reactor is a decommissioned nuclear production reactor at the Savannah River Site in South Carolina that was used primarily for producing materials for nuclear weapons during the Cold War.
  • A. C Reactor
    C Reactor is one of the early plutonium production reactors built and operated at the Hanford Site in Washington as part of the U.S. Manhattan Project and Cold War nuclear weapons program.
  • B. L Reactor
    L Reactor was a heavy water–moderated nuclear production reactor at the Savannah River Site in South Carolina, historically used to produce materials such as plutonium and tritium for the U.S. nuclear weapons program.
  • C. F Reactor
    F Reactor was one of the early plutonium production reactors at the Hanford Site in Washington, built during the Manhattan Project to support the U.S. nuclear weapons program.
  • D. P Reactor
    P Reactor was a plutonium and tritium production nuclear reactor at the U.S. Department of Energy’s Savannah River Site in South Carolina, built during the Cold War to support the nation’s nuclear weapons program.
  • E. R Reactor
    R Reactor was one of the plutonium and tritium production nuclear reactors that operated at the U.S. Department of Energy’s Savannah River Site during the Cold War.
  • 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_69a4938b04208190b82e1df6b572c548 completed March 1, 2026, 7:29 p.m.
NER Named-entity recognition batch_69a4b2b66c908190a52f731119b77a1e completed March 1, 2026, 9:42 p.m.
NED1 Entity disambiguation (via context triple) batch_69a7c0144a70819098aa4872a02b62b7 completed March 4, 2026, 5:16 a.m.
NEDg Description generation batch_69a7c088506c81908a9e8ac91cb5b69d completed March 4, 2026, 5:18 a.m.
NED2 Entity disambiguation (via description) batch_69a7c10b114c8190831a95519dd185a2 completed March 4, 2026, 5:20 a.m.
Created at: March 1, 2026, 7:38 p.m.