Triple

T7370910
Position Surface form Disambiguated ID Type / Status
Subject High Rock Lake E169998 entity
Predicate formerOperator P179 FINISHED
Object Alcoa Power Generating Inc.
Alcoa Power Generating Inc. is a former energy subsidiary of Alcoa that developed and operated hydroelectric power facilities in the United States.
 E660376 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: Alcoa Power Generating Inc. | Statement: [High Rock Lake, formerOperator, Alcoa Power Generating Inc.]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Alcoa Power Generating Inc.
Context triple: [High Rock Lake, formerOperator, Alcoa Power Generating Inc.]
  • A. Alabama Power Company
    Alabama Power Company is a major electric utility serving much of Alabama, known for operating hydroelectric dams and reservoirs as part of its power generation system.
  • B. Cinergy Corporation
    Cinergy Corporation was a U.S.-based energy company best known in part for its naming rights sponsorship of Cincinnati’s Cinergy Field baseball stadium.
  • C. Oglethorpe Power Corporation
    Oglethorpe Power Corporation is a Georgia-based electric cooperative that generates and supplies wholesale power to member-owned utilities, including through ownership stakes in nuclear facilities.
  • D. Duke Power Company
    Duke Power Company is a U.S. electric utility company historically known for its involvement in the landmark employment discrimination case Griggs v. Duke Power Co.
  • E. Great Western Power Company
    Great Western Power Company was an early 20th-century California electric utility company known for developing hydroelectric projects and infrastructure in the Sierra Nevada region.
  • 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: Alcoa Power Generating Inc.
Triple: [High Rock Lake, formerOperator, Alcoa Power Generating Inc.]
Generated description
Alcoa Power Generating Inc. is a former energy subsidiary of Alcoa that developed and operated hydroelectric power facilities in the United States.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Alcoa Power Generating Inc.
Target entity description: Alcoa Power Generating Inc. is a former energy subsidiary of Alcoa that developed and operated hydroelectric power facilities in the United States.
  • A. Alabama Power Company
    Alabama Power Company is a major electric utility serving much of Alabama, known for operating hydroelectric dams and reservoirs as part of its power generation system.
  • B. Cinergy Corporation
    Cinergy Corporation was a U.S.-based energy company best known in part for its naming rights sponsorship of Cincinnati’s Cinergy Field baseball stadium.
  • C. Oglethorpe Power Corporation
    Oglethorpe Power Corporation is a Georgia-based electric cooperative that generates and supplies wholesale power to member-owned utilities, including through ownership stakes in nuclear facilities.
  • D. Duke Power Company
    Duke Power Company is a U.S. electric utility company historically known for its involvement in the landmark employment discrimination case Griggs v. Duke Power Co.
  • E. Great Western Power Company
    Great Western Power Company was an early 20th-century California electric utility company known for developing hydroelectric projects and infrastructure in the Sierra Nevada region.
  • 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_69c68a5bfaac81909ce7f001dfb70c76 completed March 27, 2026, 1:47 p.m.
NER Named-entity recognition batch_69c6f182df5c81908964fbaa3f8ec790 completed March 27, 2026, 9:07 p.m.
NED1 Entity disambiguation (via context triple) batch_69c802c711788190806987567dbc9942 completed March 28, 2026, 4:33 p.m.
NEDg Description generation batch_69c8035151a481908a33c1ecd12c2f6d completed March 28, 2026, 4:35 p.m.
NED2 Entity disambiguation (via description) batch_69c803aea0808190a5208c02a0db1187 completed March 28, 2026, 4:37 p.m.
Created at: March 27, 2026, 3:07 p.m.