Triple

T3194911
Position Surface form Disambiguated ID Type / Status
Subject Soviet Ukraine E66911 entity
Predicate hadNuclearFacilities P46034 FINISHED
Object Chernobyl Nuclear Power Plant
The Chernobyl Nuclear Power Plant was a Soviet-era nuclear power station in northern Ukraine, infamous for the catastrophic 1986 reactor explosion that caused one of the worst nuclear disasters in history.
E335055 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: Chernobyl Nuclear Power Plant | Statement: [Soviet Ukraine, hadNuclearFacilities, Chernobyl Nuclear Power Plant]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Chernobyl Nuclear Power Plant
Context triple: [Soviet Ukraine, hadNuclearFacilities, Chernobyl Nuclear Power Plant]
  • A. Kalinin nuclear power plant
    The Kalinin nuclear power plant is a major Russian nuclear power facility that supplies electricity to the central regions of the country.
  • B. Fukushima Daiichi Nuclear Power Plant
    Fukushima Daiichi Nuclear Power Plant is a coastal Japanese nuclear power station in Ōkuma, Fukushima Prefecture, widely known as the site of the 2011 reactor meltdowns following a massive earthquake and tsunami.
  • C. Chernobyl disaster
    The Chernobyl disaster was a catastrophic 1986 nuclear power plant accident in Soviet-era Ukraine that released massive radioactive contamination across Europe and became one of the worst nuclear disasters in history.
  • D. Kahuta uranium enrichment plant
    The Kahuta uranium enrichment plant is Pakistan’s primary and highly secretive facility for producing weapons-grade uranium, central to the development of its nuclear arsenal.
  • E. Salem Nuclear Power Plant
    Salem Nuclear Power Plant is a commercial nuclear power station in Lower Alloways Creek Township, New Jersey, that generates electricity using pressurized water reactors along the Delaware River.
  • 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: Chernobyl Nuclear Power Plant
Triple: [Soviet Ukraine, hadNuclearFacilities, Chernobyl Nuclear Power Plant]
Generated description
The Chernobyl Nuclear Power Plant was a Soviet-era nuclear power station in northern Ukraine, infamous for the catastrophic 1986 reactor explosion that caused one of the worst nuclear disasters in history.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Chernobyl Nuclear Power Plant
Target entity description: The Chernobyl Nuclear Power Plant was a Soviet-era nuclear power station in northern Ukraine, infamous for the catastrophic 1986 reactor explosion that caused one of the worst nuclear disasters in history.
  • A. Kalinin nuclear power plant
    The Kalinin nuclear power plant is a major Russian nuclear power facility that supplies electricity to the central regions of the country.
  • B. Fukushima Daiichi Nuclear Power Plant
    Fukushima Daiichi Nuclear Power Plant is a coastal Japanese nuclear power station in Ōkuma, Fukushima Prefecture, widely known as the site of the 2011 reactor meltdowns following a massive earthquake and tsunami.
  • C. Chernobyl disaster
    The Chernobyl disaster was a catastrophic 1986 nuclear power plant accident in Soviet-era Ukraine that released massive radioactive contamination across Europe and became one of the worst nuclear disasters in history.
  • D. Kahuta uranium enrichment plant
    The Kahuta uranium enrichment plant is Pakistan’s primary and highly secretive facility for producing weapons-grade uranium, central to the development of its nuclear arsenal.
  • E. Salem Nuclear Power Plant
    Salem Nuclear Power Plant is a commercial nuclear power station in Lower Alloways Creek Township, New Jersey, that generates electricity using pressurized water reactors along the Delaware River.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: hadNuclearFacilities
Context triple: [Soviet Ukraine, hadNuclearFacilities, Chernobyl Nuclear Power Plant]
  • A. hasNuclearWeapons
    Indicates that the subject possesses or controls nuclear weapons.
  • B. hasNuclearRole
    Indicates that an entity participates in, is responsible for, or holds authority related to nuclear activities, functions, or capabilities.
  • C. nuclearCapability
    Indicates that an entity possesses, develops, or has access to nuclear weapons or the technological capacity to produce them.
  • D. landBasedNuclearWeapons
    Indicates the existence, deployment, or involvement of nuclear weapons that are based on land rather than at sea or in the air.
  • E. declaredNuclearWeaponsState
    Indicates that an entity has officially acknowledged possessing nuclear weapons, typically through formal declaration or international recognition.
  • F. None of above. chosen

Provenance (7 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_69ad8588ba18819086a10951c32ecb80 completed March 8, 2026, 2:19 p.m.
NER Named-entity recognition batch_69ada7163c6c8190b26b05b66740264d completed March 8, 2026, 4:43 p.m.
NED1 Entity disambiguation (via context triple) batch_69b24bae63688190b2a1a1dba8b2cffa completed March 12, 2026, 5:14 a.m.
NEDg Description generation batch_69b24ca05434819080ee515b1e7bdcb4 completed March 12, 2026, 5:18 a.m.
NED2 Entity disambiguation (via description) batch_69b24d19250c81908a9c3ac95b83a473 completed March 12, 2026, 5:20 a.m.
PD Predicate disambiguation batch_69ad9e05e4f48190adbe4366cdba2349 completed March 8, 2026, 4:04 p.m.
PDg Predicate description generation batch_69ada0f9259c8190afbc5ad0fa55436b completed March 8, 2026, 4:16 p.m.
Created at: March 8, 2026, 3:07 p.m.