Triple

T2324419
Position Surface form Disambiguated ID Type / Status
Subject Rock Island District E48253 entity
Predicate railroadLinePredecessor P38094 FINISHED
Object Chicago, Rock Island and Pacific Railroad main line E48978 NE FINISHED

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: Chicago, Rock Island and Pacific Railroad main line | Statement: [Rock Island District, railroadLinePredecessor, Chicago, Rock Island and Pacific Railroad main line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Chicago, Rock Island and Pacific Railroad main line
Context triple: [Rock Island District, railroadLinePredecessor, Chicago, Rock Island and Pacific Railroad main line]
  • A. Chicago & North Western West Line
    The Chicago & North Western West Line was a historic commuter rail route in the Chicago area that later became part of Metra’s Union Pacific West Line.
  • B. Rock Island District main line chosen
    The Rock Island District main line is a primary Metra commuter rail route in the Chicago area, running between downtown Chicago and its southwestern suburbs.
  • C. 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.
  • D. Metra BNSF Railway Line
    The Metra BNSF Railway Line is a major Chicago-area commuter rail route running between Chicago Union Station and Aurora, Illinois, primarily along tracks owned by BNSF Railway.
  • E. Illinois Central Railroad
    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.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
PD Predicate disambiguation gpt-5-mini-2025-08-07 
Target predicate: railroadLinePredecessor
Context triple: [Rock Island District, railroadLinePredecessor, Chicago, Rock Island and Pacific Railroad main line]
  • A. followsFormerRailroad
    Indicates that something is aligned with or traces the route of a former railroad line.
  • B. formerRailwayLine
    Indicates that a railway line previously existed in the past but is no longer in operation or has been decommissioned.
  • C. railLineOrigin
    Indicates that a rail line begins or originates from a specified location or point.
  • D. formerRailroad
    Indicates that an entity was previously a railroad but no longer functions as one.
  • E. railwayLine
    Indicates that there is a railway line connection or route associated with or passing through the referenced entity.
  • 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_69a88aa308a88190b0b86c011fda7fce completed March 4, 2026, 7:40 p.m.
NER Named-entity recognition batch_69abc685f05481909c863b29d1f6bacd completed March 7, 2026, 6:32 a.m.
NED1 Entity disambiguation (via context triple) batch_69ae896de2c48190ada0814d3a4f8497 completed March 9, 2026, 8:48 a.m.
PD Predicate disambiguation batch_69abc5909cc48190aab257313542dc49 completed March 7, 2026, 6:28 a.m.
PDg Predicate description generation batch_69abc682d094819081a96ffb77c4c42a completed March 7, 2026, 6:32 a.m.
Created at: March 4, 2026, 7:50 p.m.