Triple

T17310703
Position Surface form Disambiguated ID Type / Status
Subject O'Hare Airport Transit System E420286 entity
Predicate owner P347 FINISHED
Object City of Chicago E272290 NE FINISHED

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: City of Chicago | Statement: [O'Hare Airport Transit System, owner, City of Chicago]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: City of Chicago
Context triple: [O'Hare Airport Transit System, owner, City of Chicago]
  • A. City of Chicago chosen
    The City of Chicago is a major U.S. metropolis on Lake Michigan known for its influential architecture, diverse neighborhoods, and role as a cultural, economic, and transportation hub of the Midwest.
  • B. Windy City
    Windy City is a popular nickname for Chicago, a major U.S. city on Lake Michigan known for its architecture, cultural institutions, and influential history in transportation and industry.
  • C. Windy City
    Windy City is a common nickname for Wellington, the capital city of New Zealand, renowned for its strong and frequent winds.
  • D. Windy City
    Windy City is a common nickname for Hsinchu, a city in northern Taiwan known for its strong winds and major high-tech industry.
  • E. Chicago II
    Chicago II is the second studio album by the rock band Chicago, known for its jazz-rock fusion, politically themed lyrics, and the hit suite "Ballet for a Girl in Buchannon."
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (3 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_69d889d22b848190a4663d0b8f8f76e7 completed April 10, 2026, 5:25 a.m.
NER Named-entity recognition batch_69e4399837b08190b7cf74201b3cb013 completed April 19, 2026, 2:10 a.m.
NED1 Entity disambiguation (via context triple) batch_6a0180c3be308190ab9972e79287218b completed May 11, 2026, 7:09 a.m.
Created at: April 10, 2026, 5:43 a.m.