Triple

T11550968
Position Surface form Disambiguated ID Type / Status
Subject South Bend International Airport E273887 entity
Predicate hasPassengerRailService P71547 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: [South Bend International Airport, hasPassengerRailService, South Shore Line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: South Shore Line
Context triple: [South Bend International Airport, hasPassengerRailService, 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: hasPassengerRailService
Context triple: [South Bend International Airport, hasPassengerRailService, South Shore Line]
  • A. hasPassengerRailConnection chosen
    Indicates that there exists a passenger rail service linking one location or transport node to another.
  • B. hasRailSystem
    Indicates that an entity possesses or is served by a rail-based transportation system.
  • C. railwayTypeServed
    Indicates the type of railway system or service that a given entity (such as a station, line, or facility) is designed to serve or accommodate.
  • D. hasRailRoute
    Indicates that there exists a rail-based transportation route or connection between the related entities.
  • E. hasNationalRailService
    Indicates that a place or facility is served by a country's national rail transportation network.
  • 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_69d6aae4dfa48190a3ab0b19a159a3c5 completed April 8, 2026, 7:22 p.m.
NER Named-entity recognition batch_69d88a83f1e88190aabf11a4c8a6c9e5 completed April 10, 2026, 5:28 a.m.
NED1 Entity disambiguation (via context triple) batch_69e6e8396ed081909bdf381db3dacd62 completed April 21, 2026, 3 a.m.
PD Predicate disambiguation batch_69d8087e57b48190a4c253dc0210f9d4 completed April 9, 2026, 8:13 p.m.
Created at: April 8, 2026, 9:37 p.m.