Triple

T6948619
Position Surface form Disambiguated ID Type / Status
Subject Canadian National Railway E160862 entity
Predicate hasSubsidiary P254 FINISHED
Object Illinois Central Railroad E147157 NE FINISHED

How this triple was built (2 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: Illinois Central Railroad | Statement: [Canadian National Railway, hasSubsidiary, Illinois Central Railroad]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Illinois Central Railroad
Context triple: [Canadian National Railway, hasSubsidiary, Illinois Central Railroad]
  • A. Illinois Central Railroad chosen
    The Illinois Central Railroad was a major American rail carrier that played a pivotal role in connecting the Midwest to the Gulf of Mexico and fostering economic development along its north–south route.
  • B. Chicago and Alton Railroad
    The Chicago and Alton Railroad was a prominent 19th- and early 20th-century Midwestern U.S. railroad that connected Chicago with central and southern Illinois and Missouri, playing a key role in regional passenger and freight transport.
  • C. 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.
  • D. Chicago Aurora and Elgin Railroad
    The Chicago Aurora and Elgin Railroad was an interurban electric railway that once connected Chicago with its western suburbs, playing a key role in regional commuter transit in the early to mid-20th century.
  • E. 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.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (3 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_69c68850419081909fb426b8f5a304c7 completed March 27, 2026, 1:38 p.m.
NER Named-entity recognition batch_69c6daad028c8190a6db5b2d029d4dfc completed March 27, 2026, 7:29 p.m.
NED1 Entity disambiguation (via context triple) batch_69c769fd908c81908d92ff4cd79b76c0 completed March 28, 2026, 5:41 a.m.
Created at: March 27, 2026, 2:28 p.m.