Triple

T4433357
Position Surface form Disambiguated ID Type / Status
Subject Cicero station (Blue Line) E95585 entity
Predicate isOnCorridor P1018 FINISHED
Object O'Hare–Forest Park corridor
The O'Hare–Forest Park corridor is a major transit corridor in the Chicago area served by the Blue Line, connecting O'Hare International Airport with the Forest Park suburb through the city's West Side.
E440594 NE FINISHED

How this triple was built (4 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: O'Hare–Forest Park corridor | Statement: [Cicero station (Blue Line), isOnCorridor, O'Hare–Forest Park corridor]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: O'Hare–Forest Park corridor
Context triple: [Cicero station (Blue Line), isOnCorridor, O'Hare–Forest Park corridor]
  • A. Elgin-O'Hare Expressway
    The Elgin-O'Hare Expressway is a major suburban Chicago highway corridor that connects communities in DuPage and Cook counties and provides access to O'Hare International Airport.
  • B. Cermak Road
    Cermak Road is a major east–west thoroughfare in the Chicago metropolitan area known for its dense mix of shops, restaurants, and local businesses.
  • C. Eisenhower Expressway
    The Eisenhower Expressway is a major Chicago-area freeway (Interstate 290) that runs west from downtown Chicago, serving as a key commuter and transit corridor through the city's western suburbs.
  • D. Penn Line
    The Penn Line is a MARC commuter rail service in Maryland that runs along the busy Northeast Corridor between Washington, D.C., and Perryville, serving major intermediate stops such as Baltimore.
  • E. Lake Shore Drive
    Lake Shore Drive is a major scenic expressway running along the Lake Michigan shoreline in Chicago, known for connecting the city’s lakefront parks, beaches, and downtown.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg Description generation gpt-5.1
Instruction
Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: O'Hare–Forest Park corridor
Triple: [Cicero station (Blue Line), isOnCorridor, O'Hare–Forest Park corridor]
Generated description
The O'Hare–Forest Park corridor is a major transit corridor in the Chicago area served by the Blue Line, connecting O'Hare International Airport with the Forest Park suburb through the city's West Side.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: O'Hare–Forest Park corridor
Target entity description: The O'Hare–Forest Park corridor is a major transit corridor in the Chicago area served by the Blue Line, connecting O'Hare International Airport with the Forest Park suburb through the city's West Side.
  • A. Elgin-O'Hare Expressway
    The Elgin-O'Hare Expressway is a major suburban Chicago highway corridor that connects communities in DuPage and Cook counties and provides access to O'Hare International Airport.
  • B. Cermak Road
    Cermak Road is a major east–west thoroughfare in the Chicago metropolitan area known for its dense mix of shops, restaurants, and local businesses.
  • C. Eisenhower Expressway
    The Eisenhower Expressway is a major Chicago-area freeway (Interstate 290) that runs west from downtown Chicago, serving as a key commuter and transit corridor through the city's western suburbs.
  • D. Penn Line
    The Penn Line is a MARC commuter rail service in Maryland that runs along the busy Northeast Corridor between Washington, D.C., and Perryville, serving major intermediate stops such as Baltimore.
  • E. Lake Shore Drive
    Lake Shore Drive is a major scenic expressway running along the Lake Michigan shoreline in Chicago, known for connecting the city’s lakefront parks, beaches, and downtown.
  • 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_69b3453ea2b48190a26f154b3b8fece5 completed March 12, 2026, 10:59 p.m.
NER Named-entity recognition batch_69b35587bc048190aee8e0ed94b6e064 completed March 13, 2026, 12:08 a.m.
NED1 Entity disambiguation (via context triple) batch_69b6137171148190b77a6f783d5cf315 completed March 15, 2026, 2:03 a.m.
NEDg Description generation batch_69b6177d1a588190991fddf506239d22 completed March 15, 2026, 2:20 a.m.
NED2 Entity disambiguation (via description) batch_69b61b6bc1448190b30d444a821bb1a5 completed March 15, 2026, 2:37 a.m.
Created at: March 12, 2026, 11:31 p.m.