Triple

T17673605
Position Surface form Disambiguated ID Type / Status
Subject East Loop E440587 entity
Predicate transportation P230 FINISHED
Object Chicago 'L' elevated lines — 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 'L' elevated lines | Statement: [East Loop, transportation, Chicago 'L' elevated lines]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Chicago 'L' elevated lines
Context triple: [East Loop, transportation, Chicago 'L' elevated lines]
  • A. South Side elevated lines of Chicago
    The South Side elevated lines of Chicago are a historic segment of the city’s rapid transit system serving Chicago’s South Side neighborhoods as part of the “L” network.
  • B. Chicago "L" chosen
    The Chicago "L" is the elevated rapid transit system serving Chicago and some surrounding suburbs, known for its iconic above-ground tracks and extensive urban rail network.
  • C. Chicago elevated railways
    Chicago elevated railways are a historic urban rapid transit system in Chicago, known for their distinctive above-ground tracks and central role in the city’s public transportation network.
  • D. MAX Red Line light rail
    The MAX Red Line light rail is a public transit service in the Portland metropolitan area that connects downtown Portland with Portland International Airport and other key destinations.
  • E. Metra Electric District line
    The Metra Electric District line is a commuter rail line in the Chicago metropolitan area that runs from downtown Chicago to its southern suburbs, serving key destinations along the South Side and beyond.
  • 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_69d8b9e87e18819087104a44dc4dc5b1 completed April 10, 2026, 8:50 a.m.
NER Named-entity recognition batch_69e46f6aa64081908c9a82128a5a9024 completed April 19, 2026, 6 a.m.
Created at: April 10, 2026, 10 a.m.