Triple

T5377115
Position Surface form Disambiguated ID Type / Status
Subject Chicago and North Western Railway Company E112986 entity
Predicate ownedSubsidiary P254 FINISHED
Object Chicago, St. Paul, Minneapolis and Omaha Railway
The Chicago, St. Paul, Minneapolis and Omaha Railway was a Midwestern U.S. railroad system that operated extensive regional passenger and freight services, particularly across Wisconsin, Minnesota, and surrounding states.
E521063 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: Chicago, St. Paul, Minneapolis and Omaha Railway | Statement: [Chicago and North Western Railway Company, ownedSubsidiary, Chicago, St. Paul, Minneapolis and Omaha Railway]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Chicago, St. Paul, Minneapolis and Omaha Railway
Context triple: [Chicago and North Western Railway Company, ownedSubsidiary, Chicago, St. Paul, Minneapolis and Omaha Railway]
  • A. New York, Chicago and St. Louis Railroad
    The New York, Chicago and St. Louis Railroad, commonly known as the Nickel Plate Road, was a prominent Midwestern and Great Lakes region railroad in the United States that operated major freight and passenger services between key industrial cities.
  • B. Chicago, Rock Island and Pacific Railroad
    The Chicago, Rock Island and Pacific Railroad was a major Midwestern U.S. railroad that operated extensive passenger and freight services, notably connecting Chicago with cities across the Great Plains and Southwest, until its final liquidation in the 1980s.
  • C. Chicago and North Western Railway Company
    The Chicago and North Western Railway Company was a major Midwestern American railroad that operated an extensive network of lines connecting Chicago with the upper Midwest and Great Plains from the 19th through the 20th century.
  • D. Chicago, Burlington and Quincy Railroad
    The Chicago, Burlington and Quincy Railroad was a major American railroad company in the Midwestern and Western United States, known for its extensive passenger and freight services and its role in developing routes between Chicago, Denver, and the Pacific Coast.
  • E. Iowa Interstate Railroad
    Iowa Interstate Railroad is a regional freight railroad operating across parts of Iowa and neighboring Midwestern states, connecting local industries to the national rail network.
  • 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: Chicago, St. Paul, Minneapolis and Omaha Railway
Triple: [Chicago and North Western Railway Company, ownedSubsidiary, Chicago, St. Paul, Minneapolis and Omaha Railway]
Generated description
The Chicago, St. Paul, Minneapolis and Omaha Railway was a Midwestern U.S. railroad system that operated extensive regional passenger and freight services, particularly across Wisconsin, Minnesota, and surrounding states.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Chicago, St. Paul, Minneapolis and Omaha Railway
Target entity description: The Chicago, St. Paul, Minneapolis and Omaha Railway was a Midwestern U.S. railroad system that operated extensive regional passenger and freight services, particularly across Wisconsin, Minnesota, and surrounding states.
  • A. New York, Chicago and St. Louis Railroad
    The New York, Chicago and St. Louis Railroad, commonly known as the Nickel Plate Road, was a prominent Midwestern and Great Lakes region railroad in the United States that operated major freight and passenger services between key industrial cities.
  • B. Chicago, Rock Island and Pacific Railroad
    The Chicago, Rock Island and Pacific Railroad was a major Midwestern U.S. railroad that operated extensive passenger and freight services, notably connecting Chicago with cities across the Great Plains and Southwest, until its final liquidation in the 1980s.
  • C. Chicago and North Western Railway Company
    The Chicago and North Western Railway Company was a major Midwestern American railroad that operated an extensive network of lines connecting Chicago with the upper Midwest and Great Plains from the 19th through the 20th century.
  • D. Chicago, Burlington and Quincy Railroad
    The Chicago, Burlington and Quincy Railroad was a major American railroad company in the Midwestern and Western United States, known for its extensive passenger and freight services and its role in developing routes between Chicago, Denver, and the Pacific Coast.
  • E. Iowa Interstate Railroad
    Iowa Interstate Railroad is a regional freight railroad operating across parts of Iowa and neighboring Midwestern states, connecting local industries to the national rail network.
  • 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_69bd4436a1988190af18dcff7fd306b4 completed March 20, 2026, 12:57 p.m.
NER Named-entity recognition batch_69bd86b08bf881909fa2e42c977d807a completed March 20, 2026, 5:41 p.m.
NED1 Entity disambiguation (via context triple) batch_69bf411b7a808190a15ef1936a5fcfb6 completed March 22, 2026, 1:08 a.m.
NEDg Description generation batch_69bf41efb7748190acefa796eb4e4bed completed March 22, 2026, 1:12 a.m.
NED2 Entity disambiguation (via description) batch_69bf42654a108190b271f78616eea25a completed March 22, 2026, 1:14 a.m.
Created at: March 20, 2026, 2:03 p.m.