Triple

T19243217
Position Surface form Disambiguated ID Type / Status
Subject National City Lines E481181 entity
Predicate acquired P2511 FINISHED
Object St. Louis Public Service Company (controlling interest)
St. Louis Public Service Company was the primary streetcar and bus transit operator serving the St. Louis, Missouri metropolitan area during much of the 20th century.
 E579825 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: St. Louis Public Service Company (controlling interest) | Statement: [National City Lines, acquired, St. Louis Public Service Company (controlling interest)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: St. Louis Public Service Company (controlling interest)
Context triple: [National City Lines, acquired, St. Louis Public Service Company (controlling interest)]
  • A. Kansas City Power & Light Company
    Kansas City Power & Light Company is a historic electric utility company based in Kansas City, Missouri, known for powering the region and lending its name to the city’s downtown Power & Light District.
  • B. Louisville Gas and Electric Company
    Louisville Gas and Electric Company is a regulated utility that provides electricity and natural gas services to customers in and around Louisville, Kentucky.
  • C. 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.
  • D. Duquesne Light Company
    Duquesne Light Company is a Pennsylvania-based electric utility that has played a significant role in the region’s power generation history, including involvement with pioneering nuclear facilities.
  • E. Kentucky Utilities Company
    Kentucky Utilities Company is a regulated electric utility serving customers in Kentucky and surrounding areas as part of the PPL Corporation family of energy companies.
  • 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: St. Louis Public Service Company (controlling interest)
Triple: [National City Lines, acquired, St. Louis Public Service Company (controlling interest)]
Generated description
St. Louis Public Service Company was the primary streetcar and bus transit operator serving the St. Louis, Missouri metropolitan area during much of the 20th century.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: St. Louis Public Service Company (controlling interest)
Target entity description: St. Louis Public Service Company was the primary streetcar and bus transit operator serving the St. Louis, Missouri metropolitan area during much of the 20th century.
  • A. Kansas City Power & Light Company
    Kansas City Power & Light Company is a historic electric utility company based in Kansas City, Missouri, known for powering the region and lending its name to the city’s downtown Power & Light District.
  • B. Louisville Gas and Electric Company
    Louisville Gas and Electric Company is a regulated utility that provides electricity and natural gas services to customers in and around Louisville, Kentucky.
  • C. Middle West Utilities Company chosen
    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.
  • D. Duquesne Light Company
    Duquesne Light Company is a Pennsylvania-based electric utility that has played a significant role in the region’s power generation history, including involvement with pioneering nuclear facilities.
  • E. Kentucky Utilities Company
    Kentucky Utilities Company is a regulated electric utility serving customers in Kentucky and surrounding areas as part of the PPL Corporation family of energy companies.
  • F. None of above.

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_69d8e8cd9d1081908a181d02b88b59b8 completed April 10, 2026, 12:10 p.m.
NER Named-entity recognition batch_69e5faf3018881909ef866616c45ff2e completed April 20, 2026, 10:07 a.m.
NED1 Entity disambiguation (via context triple) batch_6a0705de9bb88190a2a7b3fed79e95de completed May 15, 2026, 11:39 a.m.
NEDg Description generation batch_6a070661a2888190a4f56a27ddd38cc7 completed May 15, 2026, 11:41 a.m.
NED2 Entity disambiguation (via description) batch_6a0706eb41d88190a77adaf469df30e1 completed May 15, 2026, 11:43 a.m.
Created at: April 10, 2026, 1:27 p.m.