Triple

T20179238
Position Surface form Disambiguated ID Type / Status
Subject Chicago–Twin Cities route E492680 entity
Predicate servedByNamedTrain P138983 FINISHED
Object Rocket (Rock Island services) — 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: Rocket (Rock Island services) | Statement: [Chicago–Twin Cities route, servedByNamedTrain, Rocket (Rock Island services)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Rocket (Rock Island services)
Context triple: [Chicago–Twin Cities route, servedByNamedTrain, Rocket (Rock Island services)]
  • A. Durbin Rocket excursion train
    The Durbin Rocket excursion train is a heritage tourist railroad in Durbin, West Virginia, offering scenic rides through the surrounding countryside in vintage railcars pulled by historic locomotives.
  • B. 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.
  • C. Stagecoach Rail
    Stagecoach Rail was the rail transport division of Stagecoach Group, operating passenger train services in the United Kingdom before the brand was retired.
  • D. 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.
  • E. MARC Train
    MARC Train is a commuter rail service operating in Maryland and the surrounding region, connecting cities such as Washington, D.C., Baltimore, and Martinsburg.
  • 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: Rocket (Rock Island services)
Target entity description: Rocket (Rock Island services) was a named passenger train operated by the Chicago, Rock Island and Pacific Railroad, providing streamlined service between Chicago and the Twin Cities in the mid-20th century.
  • A. Durbin Rocket excursion train
    The Durbin Rocket excursion train is a heritage tourist railroad in Durbin, West Virginia, offering scenic rides through the surrounding countryside in vintage railcars pulled by historic locomotives.
  • B. 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.
  • C. Stagecoach Rail
    Stagecoach Rail was the rail transport division of Stagecoach Group, operating passenger train services in the United Kingdom before the brand was retired.
  • D. 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.
  • E. MARC Train
    MARC Train is a commuter rail service operating in Maryland and the surrounding region, connecting cities such as Washington, D.C., Baltimore, and Martinsburg.
  • 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.