Triple

T3649901

Position	Surface form	Disambiguated ID	Type / Status
Subject	Vermont Yankee Nuclear Power Corp. v. NRDC	`E77393`	entity
Predicate	petitioner	`P3132`	FINISHED
Object	Vermont Yankee Nuclear Power Corporation Vermont Yankee Nuclear Power Corporation was the owner and operator of the Vermont Yankee nuclear power plant and a key party in the landmark U.S. Supreme Court case Vermont Yankee Nuclear Power Corp. v. NRDC, which shaped administrative law and regulatory procedure.	`E376516`	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: Vermont Yankee Nuclear Power Corporation | Statement: [Vermont Yankee Nuclear Power Corp. v. NRDC, petitioner, Vermont Yankee Nuclear Power Corporation]

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Vermont Yankee Nuclear Power Corporation
Context triple: [Vermont Yankee Nuclear Power Corp. v. NRDC, petitioner, Vermont Yankee Nuclear Power Corporation]

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. Hatch Nuclear Power Plant
Hatch Nuclear Power Plant is a commercial nuclear power generating facility in Georgia that supplies electricity to the regional grid as part of Southern Company's energy portfolio.
C. Pickering Nuclear Generating Station
Pickering Nuclear Generating Station is a large Canadian nuclear power plant on the shore of Lake Ontario that has been a major source of electricity for the Greater Toronto Area.
D. Hope Creek Nuclear Generating Station
Hope Creek Nuclear Generating Station is a single-unit boiling water nuclear power plant located in Lower Alloways Creek Township, New Jersey, that generates electricity for the regional grid.
E. Three Mile Island Nuclear Generating Station
Three Mile Island Nuclear Generating Station is a former nuclear power plant in Pennsylvania best known as the site of the 1979 partial reactor meltdown, the most serious accident in U.S. commercial nuclear power history.
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: Vermont Yankee Nuclear Power Corporation
Triple: [Vermont Yankee Nuclear Power Corp. v. NRDC, petitioner, Vermont Yankee Nuclear Power Corporation]

Generated description

Vermont Yankee Nuclear Power Corporation was the owner and operator of the Vermont Yankee nuclear power plant and a key party in the landmark U.S. Supreme Court case Vermont Yankee Nuclear Power Corp. v. NRDC, which shaped administrative law and regulatory procedure.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: Vermont Yankee Nuclear Power Corporation
Target entity description: Vermont Yankee Nuclear Power Corporation was the owner and operator of the Vermont Yankee nuclear power plant and a key party in the landmark U.S. Supreme Court case Vermont Yankee Nuclear Power Corp. v. NRDC, which shaped administrative law and regulatory procedure.

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. Hatch Nuclear Power Plant
Hatch Nuclear Power Plant is a commercial nuclear power generating facility in Georgia that supplies electricity to the regional grid as part of Southern Company's energy portfolio.
C. Pickering Nuclear Generating Station
Pickering Nuclear Generating Station is a large Canadian nuclear power plant on the shore of Lake Ontario that has been a major source of electricity for the Greater Toronto Area.
D. Hope Creek Nuclear Generating Station
Hope Creek Nuclear Generating Station is a single-unit boiling water nuclear power plant located in Lower Alloways Creek Township, New Jersey, that generates electricity for the regional grid.
E. Three Mile Island Nuclear Generating Station
Three Mile Island Nuclear Generating Station is a former nuclear power plant in Pennsylvania best known as the site of the 1979 partial reactor meltdown, the most serious accident in U.S. commercial nuclear power history.
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_69ad85def5cc8190863dccf55a18bebb`	completed	March 8, 2026, 2:21 p.m.
NER	Named-entity recognition	`batch_69adc38fa1988190b630329700afc3dd`	completed	March 8, 2026, 6:44 p.m.
NED1	Entity disambiguation (via context triple)	`batch_69b44f4002948190af41072962006f51`	completed	March 13, 2026, 5:54 p.m.
NEDg	Description generation	`batch_69b4531590408190b6048b6b0335eb0a`	completed	March 13, 2026, 6:10 p.m.
NED2	Entity disambiguation (via description)	`batch_69b466719c788190a70d8338b45c28ab`	completed	March 13, 2026, 7:33 p.m.

Created at: March 8, 2026, 3:24 p.m.