Triple

T20179240
Position Surface form Disambiguated ID Type / Status
Subject Chicago–Twin Cities route E492680 entity
Predicate servedByNamedTrain P138983 FINISHED
Object Blue Bird (Rock Island) — 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: Blue Bird (Rock Island) | Statement: [Chicago–Twin Cities route, servedByNamedTrain, Blue Bird (Rock Island)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Blue Bird (Rock Island)
Context triple: [Chicago–Twin Cities route, servedByNamedTrain, Blue Bird (Rock Island)]
  • A. Illinois Zephyr
    The Illinois Zephyr is a state-supported Amtrak passenger train that operates daily between Chicago and Quincy, Illinois, serving intermediate cities across the state.
  • B. Texas Eagle (Missouri Pacific Railroad)
    The Texas Eagle (Missouri Pacific Railroad) was a prominent mid-20th-century passenger train that operated between St. Louis and Texas, known for providing long-distance service through the central and southwestern United States.
  • C. Pan Handle Railway
    The Pan Handle Railway was a 19th-century American railroad whose lines later became part of the Pittsburgh, Cincinnati, Chicago and St. Louis Railroad system.
  • D. Dixie Flyer
    The Dixie Flyer was a prominent named passenger train that provided long-distance service through the American South, particularly connecting the Midwest to Florida vacation destinations.
  • E. Nebraska Zephyr
    The Nebraska Zephyr was a streamlined passenger train that provided luxury rail service between Chicago and Nebraska in the mid-20th century.
  • 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: Blue Bird (Rock Island)
Target entity description: Blue Bird (Rock Island) was a named passenger train of the Chicago, Rock Island and Pacific Railroad that provided streamlined service between Chicago and the Twin Cities.
  • A. Illinois Zephyr
    The Illinois Zephyr is a state-supported Amtrak passenger train that operates daily between Chicago and Quincy, Illinois, serving intermediate cities across the state.
  • B. Texas Eagle (Missouri Pacific Railroad)
    The Texas Eagle (Missouri Pacific Railroad) was a prominent mid-20th-century passenger train that operated between St. Louis and Texas, known for providing long-distance service through the central and southwestern United States.
  • C. Pan Handle Railway
    The Pan Handle Railway was a 19th-century American railroad whose lines later became part of the Pittsburgh, Cincinnati, Chicago and St. Louis Railroad system.
  • D. Dixie Flyer
    The Dixie Flyer was a prominent named passenger train that provided long-distance service through the American South, particularly connecting the Midwest to Florida vacation destinations.
  • E. Nebraska Zephyr
    The Nebraska Zephyr was a streamlined passenger train that provided luxury rail service between Chicago and Nebraska in the mid-20th century.
  • 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_69da6268a034819081cbd9ea5a1c9475 completed April 11, 2026, 3:02 p.m.
NER Named-entity recognition batch_69e668ed07c8819091bd9ffda237a91c completed April 20, 2026, 5:57 p.m.
Created at: April 11, 2026, 11:36 p.m.