Triple

T17822888
Position Surface form Disambiguated ID Type / Status
Subject Hoosier State E445033 entity
Predicate route P5619 FINISHED
Object Chicago Union Station – Indianapolis Union Station — NE NERFINISHED

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: Chicago Union Station – Indianapolis Union Station | Statement: [Hoosier State, route, Chicago Union Station – Indianapolis Union Station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Chicago Union Station – Indianapolis Union Station
Context triple: [Hoosier State, route, Chicago Union Station – Indianapolis Union Station]
  • A. Indianapolis Union Station
    Indianapolis Union Station is a historic railway terminal in downtown Indianapolis, Indiana, notable as one of the first union stations in the United States and a key Midwestern passenger rail hub.
  • B. Washington/Wabash station
    Washington/Wabash station is a Chicago 'L' rapid transit station in the Loop that serves multiple elevated lines and replaced the former Randolph/Wabash and Madison/Wabash stations.
  • C. Chicago Union Station chosen
    Chicago Union Station is a major intercity and commuter rail terminal in downtown Chicago that serves as a central hub for Amtrak and regional rail services.
  • D. Chicago, Burlington and Quincy Railroad station
    Chicago, Burlington and Quincy Railroad station was the original name of what is now known as Hinsdale station, a historic commuter rail stop in Hinsdale, Illinois that once served the CB&Q Railroad.
  • E. Randolph/Wabash station
    Randolph/Wabash station was a former elevated Chicago "L" station in the Loop that served multiple train lines before being closed and replaced by the modern Washington/Wabash station.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

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_69d8b9f0de78819099395b14db75a8a6 completed April 10, 2026, 8:50 a.m.
NER Named-entity recognition batch_69e4891282a081908d384d45bf444baf completed April 19, 2026, 7:49 a.m.
Created at: April 10, 2026, 10:15 a.m.