Triple

T4136924
Position Surface form Disambiguated ID Type / Status
Subject Chernobyl disaster E85175 entity
Predicate firstInternationalDetection P53467 FINISHED
Object Forsmark Nuclear Power Plant in Sweden
Forsmark Nuclear Power Plant in Sweden is a major Swedish nuclear facility on the Baltic coast, notable for being the site where elevated radiation levels first alerted the world to the Chernobyl disaster in 1986.
E414461 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: Forsmark Nuclear Power Plant in Sweden | Statement: [Chernobyl disaster, firstInternationalDetection, Forsmark Nuclear Power Plant in Sweden]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Forsmark Nuclear Power Plant in Sweden
Context triple: [Chernobyl disaster, firstInternationalDetection, Forsmark Nuclear Power Plant in Sweden]
  • A. Ascó Nuclear Power Plant
    Ascó Nuclear Power Plant is a major Spanish nuclear power facility located in Catalonia that generates electricity using pressurized water reactors.
  • B. 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.
  • C. 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.
  • D. Flamanville 3 nuclear power plant
    Flamanville 3 nuclear power plant is a French EPR (European Pressurized Reactor) project on the Normandy coast, known for its advanced reactor design, major construction delays, and significant cost overruns.
  • 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: Forsmark Nuclear Power Plant in Sweden
Triple: [Chernobyl disaster, firstInternationalDetection, Forsmark Nuclear Power Plant in Sweden]
Generated description
Forsmark Nuclear Power Plant in Sweden is a major Swedish nuclear facility on the Baltic coast, notable for being the site where elevated radiation levels first alerted the world to the Chernobyl disaster in 1986.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Forsmark Nuclear Power Plant in Sweden
Target entity description: Forsmark Nuclear Power Plant in Sweden is a major Swedish nuclear facility on the Baltic coast, notable for being the site where elevated radiation levels first alerted the world to the Chernobyl disaster in 1986.
  • A. Ascó Nuclear Power Plant
    Ascó Nuclear Power Plant is a major Spanish nuclear power facility located in Catalonia that generates electricity using pressurized water reactors.
  • B. 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.
  • C. 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.
  • D. Flamanville 3 nuclear power plant
    Flamanville 3 nuclear power plant is a French EPR (European Pressurized Reactor) project on the Normandy coast, known for its advanced reactor design, major construction delays, and significant cost overruns.
  • 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: firstInternationalDetection
Context triple: [Chernobyl disaster, firstInternationalDetection, Forsmark Nuclear Power Plant in Sweden]
  • A. firstInternationalYear
    Indicates that the referenced year is the first year in which the entity participated in or was involved in an international context or activity.
  • B. detected chosen
    Indicates that an entity has observed, identified, or discovered the presence or occurrence of another entity or event.
  • C. firstTestedBy
    Indicates that an item, concept, or process was initially tested or tried out by a particular agent or entity.
  • D. firstDemonstrated
    Indicates that one entity was the earliest to show, prove, or exemplify a particular concept, method, or capability in relation to another entity or context.
  • E. firstInternationalDocking
    Indicates that this docking event is the first time an international (between different countries’ spacecraft or space stations) docking has occurred.
  • 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_69aed935ccd881909dc61f81bcdb7a78 completed March 9, 2026, 2:29 p.m.
NER Named-entity recognition batch_69af03a0f3408190adba7a8513bd3d12 completed March 9, 2026, 5:30 p.m.
NED1 Entity disambiguation (via context triple) batch_69b576c75e5c8190acc4ee72cb574432 completed March 14, 2026, 2:55 p.m.
NEDg Description generation batch_69b57799f22481908cfda7e620a77187 completed March 14, 2026, 2:58 p.m.
NED2 Entity disambiguation (via description) batch_69b578003dd48190b9264fd834cffbdf completed March 14, 2026, 3 p.m.
PD Predicate disambiguation batch_69af018a54848190987f18c066c75068 completed March 9, 2026, 5:21 p.m.
Created at: March 9, 2026, 3:43 p.m.