Triple

T16238540
Position Surface form Disambiguated ID Type / Status
Subject Combustion Engineering PWR E394178 entity
Predicate usedInPlant P122286 FINISHED
Object Connecticut Yankee Nuclear Power Plant
Connecticut Yankee Nuclear Power Plant was a now-decommissioned pressurized water reactor facility in Haddam, Connecticut, that operated from the late 1960s to the mid-1990s as one of the early commercial nuclear power stations in the United States.
E1206923 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: Connecticut Yankee Nuclear Power Plant | Statement: [Combustion Engineering PWR, usedInPlant, Connecticut Yankee Nuclear Power Plant]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Connecticut Yankee Nuclear Power Plant
Context triple: [Combustion Engineering PWR, usedInPlant, Connecticut Yankee Nuclear Power Plant]
  • A. 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.
  • B. Springfield Nuclear Power Plant
    The Springfield Nuclear Power Plant is the accident-prone workplace of Homer Simpson and a central setting in the animated television series "The Simpsons," symbolizing corporate greed, environmental hazards, and satirical takes on nuclear energy.
  • C. Yankee Rowe Nuclear Power Station
    Yankee Rowe Nuclear Power Station was one of the first commercial nuclear power plants in the United States, notable as an early pressurized water reactor facility that operated in Massachusetts from the early 1960s until its decommissioning in the 1990s.
  • D. Maine Yankee Nuclear Power Plant
    Maine Yankee Nuclear Power Plant was a large, now-decommissioned pressurized water reactor facility in Wiscasset, Maine that supplied significant electrical power to New England from the early 1970s until its closure in the 1990s.
  • E. Seabrook Station Nuclear Power Plant
    Seabrook Station Nuclear Power Plant is a commercial nuclear power facility in Seabrook, New Hampshire, known for its large pressurized water reactor and significant role in the region’s electricity generation.
  • 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: Connecticut Yankee Nuclear Power Plant
Triple: [Combustion Engineering PWR, usedInPlant, Connecticut Yankee Nuclear Power Plant]
Generated description
Connecticut Yankee Nuclear Power Plant was a now-decommissioned pressurized water reactor facility in Haddam, Connecticut, that operated from the late 1960s to the mid-1990s as one of the early commercial nuclear power stations in the United States.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Connecticut Yankee Nuclear Power Plant
Target entity description: Connecticut Yankee Nuclear Power Plant was a now-decommissioned pressurized water reactor facility in Haddam, Connecticut, that operated from the late 1960s to the mid-1990s as one of the early commercial nuclear power stations in the United States.
  • A. 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.
  • B. Springfield Nuclear Power Plant
    The Springfield Nuclear Power Plant is the accident-prone workplace of Homer Simpson and a central setting in the animated television series "The Simpsons," symbolizing corporate greed, environmental hazards, and satirical takes on nuclear energy.
  • C. Yankee Rowe Nuclear Power Station
    Yankee Rowe Nuclear Power Station was one of the first commercial nuclear power plants in the United States, notable as an early pressurized water reactor facility that operated in Massachusetts from the early 1960s until its decommissioning in the 1990s.
  • D. Maine Yankee Nuclear Power Plant
    Maine Yankee Nuclear Power Plant was a large, now-decommissioned pressurized water reactor facility in Wiscasset, Maine that supplied significant electrical power to New England from the early 1970s until its closure in the 1990s.
  • E. Seabrook Station Nuclear Power Plant
    Seabrook Station Nuclear Power Plant is a commercial nuclear power facility in Seabrook, New Hampshire, known for its large pressurized water reactor and significant role in the region’s electricity generation.
  • 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_69d87f2171208190951025e526947816 completed April 10, 2026, 4:40 a.m.
NER Named-entity recognition batch_69e2455c7a3c81909e3b42edf03be43e completed April 17, 2026, 2:36 p.m.
NED1 Entity disambiguation (via context triple) batch_6a0025f740ec8190ab075c953e27cfba completed May 10, 2026, 6:30 a.m.
NEDg Description generation batch_6a0026da02448190b971fdc6420a078b completed May 10, 2026, 6:34 a.m.
NED2 Entity disambiguation (via description) batch_6a0027f99d948190b22812f0c9a2c0ff completed May 10, 2026, 6:38 a.m.
Created at: April 10, 2026, 5:04 a.m.