Triple

T23537353
Position Surface form Disambiguated ID Type / Status
Subject Ameren Missouri E577634 entity
Predicate alternativeName P39 FINISHED
Object Union Electric Company — NE NERFINISHED

How this triple was built (3 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: Union Electric Company | Statement: [Ameren Missouri, alternativeName, Union Electric Company]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Union Electric Company
Context triple: [Ameren Missouri, alternativeName, Union Electric Company]
  • A. Southern Electric
    Southern Electric was a former regional electricity company in the United Kingdom that later became part of SSE plc through a merger.
  • B. 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.
  • C. New England Power Company
    New England Power Company is a regional electric utility company in the northeastern United States that has owned and operated various power generation facilities, including the Salem Harbor Power Station.
  • D. 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.
  • E. Middle West Utilities Company
    Middle West Utilities Company was a major early 20th-century American electric utility holding company associated with the expansion and subsequent collapse of Samuel Insull’s vast utility empire.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Union Electric Company
Target entity description: Union Electric Company, now known as Ameren Missouri, is a major electric and gas utility serving customers across the state of Missouri.
  • A. Southern Electric
    Southern Electric was a former regional electricity company in the United Kingdom that later became part of SSE plc through a merger.
  • B. 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.
  • C. New England Power Company
    New England Power Company is a regional electric utility company in the northeastern United States that has owned and operated various power generation facilities, including the Salem Harbor Power Station.
  • D. 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.
  • E. Middle West Utilities Company
    Middle West Utilities Company was a major early 20th-century American electric utility holding company associated with the expansion and subsequent collapse of Samuel Insull’s vast utility empire.
  • F. None of above. chosen

Provenance (2 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_69e245f9d5d08190a4a20004e1784e20 completed April 17, 2026, 2:38 p.m.
NER Named-entity recognition batch_69f1ae1831688190ac06b84729bce160 completed April 29, 2026, 7:07 a.m.
Created at: April 17, 2026, 6:10 p.m.