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.