Triple

T7706980
Position Surface form Disambiguated ID Type / Status
Subject Northern Indiana E174642 entity
Predicate hasRailCorridor P58937 FINISHED
Object South Shore Line E56009 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: South Shore Line | Statement: [Northern Indiana, hasRailCorridor, South Shore Line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: South Shore Line
Context triple: [Northern Indiana, hasRailCorridor, South Shore Line]
  • A. South Shore Line chosen
    The South Shore Line is an electric commuter rail service connecting Chicago with communities in northern Indiana, including Gary.
  • B. North Shore Line
    North Shore Line was an interurban electric railway that operated between Chicago and Milwaukee, known for its high-speed service and distinctive green-and-cream trains.
  • C. Metra Rock Island District line
    The Metra Rock Island District line is a commuter rail route in the Chicago metropolitan area that connects downtown Chicago with various southwest suburbs, including Tinley Park.
  • D. Metra Heritage Corridor
    The Metra Heritage Corridor is a commuter rail line in the Chicago metropolitan area that provides weekday service between Chicago Union Station and Joliet, Illinois, largely following the historic Illinois & Michigan Canal corridor.
  • E. Brown Line
    The Brown Line is a rapid transit route of Chicago's "L" system that primarily serves the city's North Side and northwest neighborhoods.
  • 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: hasRailCorridor
Context triple: [Northern Indiana, hasRailCorridor, South Shore Line]
  • A. hasMajorRailCorridor
    Indicates that a location or region is traversed by a primary, high-capacity railway route used for significant passenger or freight transport.
  • B. hasRailRoute chosen
    Indicates that there exists a rail-based transportation route or connection between the related entities.
  • C. hasRailSystem
    Indicates that an entity possesses or is served by a rail-based transportation system.
  • D. hasRackRailway
    Indicates that one entity possesses or includes a rack railway system connecting locations or operating within its area.
  • E. usesRailInfrastructureOf
    Indicates that one entity operates on, accesses, or otherwise makes use of the rail infrastructure owned or managed by another entity.
  • F. None of above.

Provenance (4 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_69c6995b3e8c8190833108f883d5f53c completed March 27, 2026, 2:51 p.m.
NER Named-entity recognition batch_69c702ebb7448190ae8d47fe0cbb0907 completed March 27, 2026, 10:21 p.m.
NED1 Entity disambiguation (via context triple) batch_69c8acc48708819082d58218eb753327 completed March 29, 2026, 4:38 a.m.
PD Predicate disambiguation batch_69c701683dec8190be9861e592aa8ce0 completed March 27, 2026, 10:15 p.m.
Created at: March 27, 2026, 4:04 p.m.