Triple

T6093967
Position Surface form Disambiguated ID Type / Status
Subject McMurdo Station E135831 entity
Predicate previousPowerSource P8164 FINISHED
Object PM-3A nuclear reactor
The PM-3A nuclear reactor was a small U.S. Navy-built nuclear power plant that supplied electricity and heat to McMurdo Station in Antarctica during the 1960s and early 1970s.
E568399 NE FINISHED

How this triple was built (5 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: PM-3A nuclear reactor | Statement: [McMurdo Station, previousPowerSource, PM-3A nuclear reactor]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: PM-3A nuclear reactor
Context triple: [McMurdo Station, previousPowerSource, PM-3A nuclear reactor]
  • A. S2W nuclear reactor
    The S2W nuclear reactor was an early U.S. Navy pressurized water reactor design that powered the world’s first operational nuclear-powered submarine, USS Nautilus.
  • B. K-West Reactor
    K-West Reactor is one of the plutonium production reactors at the Hanford Site in Washington State, historically used to support the U.S. nuclear weapons program.
  • C. TRIGA research reactor
    The TRIGA research reactor is a small, inherently safe nuclear reactor design widely used in universities and research institutions for education, training, and scientific experiments.
  • D. X-10 graphite reactor
    The X-10 graphite reactor was an early nuclear reactor at Oak Ridge, Tennessee, built during the Manhattan Project as a pilot plant for plutonium production and a key step toward the development of nuclear weapons and nuclear energy.
  • E. K15 pressurized water reactor
    The K15 pressurized water reactor is a French naval nuclear reactor design used to power modern French aircraft carriers and submarines.
  • 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: PM-3A nuclear reactor
Triple: [McMurdo Station, previousPowerSource, PM-3A nuclear reactor]
Generated description
The PM-3A nuclear reactor was a small U.S. Navy-built nuclear power plant that supplied electricity and heat to McMurdo Station in Antarctica during the 1960s and early 1970s.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: PM-3A nuclear reactor
Target entity description: The PM-3A nuclear reactor was a small U.S. Navy-built nuclear power plant that supplied electricity and heat to McMurdo Station in Antarctica during the 1960s and early 1970s.
  • A. S2W nuclear reactor
    The S2W nuclear reactor was an early U.S. Navy pressurized water reactor design that powered the world’s first operational nuclear-powered submarine, USS Nautilus.
  • B. K-West Reactor
    K-West Reactor is one of the plutonium production reactors at the Hanford Site in Washington State, historically used to support the U.S. nuclear weapons program.
  • C. TRIGA research reactor
    The TRIGA research reactor is a small, inherently safe nuclear reactor design widely used in universities and research institutions for education, training, and scientific experiments.
  • D. X-10 graphite reactor
    The X-10 graphite reactor was an early nuclear reactor at Oak Ridge, Tennessee, built during the Manhattan Project as a pilot plant for plutonium production and a key step toward the development of nuclear weapons and nuclear energy.
  • E. K15 pressurized water reactor
    The K15 pressurized water reactor is a French naval nuclear reactor design used to power modern French aircraft carriers and submarines.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: previousPowerSource
Context triple: [McMurdo Station, previousPowerSource, PM-3A nuclear reactor]
  • A. hasPowerSource chosen
    Indicates that an entity derives its operational energy or functionality from a specified power source.
  • B. inPowerSince
    Indicates the point in time from which an entity has continuously held a position of authority or power.
  • C. previousCircuit
    Indicates that one circuit occurs or is positioned immediately before another circuit in a defined sequence or ordering.
  • D. powerChange
    Indicates a change in the level, amount, or state of power associated with an entity over time.
  • E. lostPower
    Indicates that an entity has ceased to have electrical or functional power it previously possessed.
  • F. None of above.

Provenance (6 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_69c0087cd3c48190b459848c72d84eb1 completed March 22, 2026, 3:19 p.m.
NER Named-entity recognition batch_69c05a9516ec819093e94ee8d3244e1b completed March 22, 2026, 9:09 p.m.
NED1 Entity disambiguation (via context triple) batch_69c1253b2cb48190be682e9184cf4f5d completed March 23, 2026, 11:34 a.m.
NEDg Description generation batch_69c126ee1d408190b8efa4a8d5b658e0 completed March 23, 2026, 11:41 a.m.
NED2 Entity disambiguation (via description) batch_69c12787753c8190ab6c49ebd0dcac41 completed March 23, 2026, 11:44 a.m.
PD Predicate disambiguation batch_69c049f3b1ec8190bea67a7bec6442a5 completed March 22, 2026, 7:58 p.m.
Created at: March 22, 2026, 4:12 p.m.