Triple

T16645043
Position Surface form Disambiguated ID Type / Status
Subject Chicago–Ann Arbor corridor E404445 entity
Predicate partOf P40 FINISHED
Object Midwest passenger rail network E95431 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: Midwest passenger rail network | Statement: [Chicago–Ann Arbor corridor, partOf, Midwest passenger rail network]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Midwest passenger rail network
Context triple: [Chicago–Ann Arbor corridor, partOf, Midwest passenger rail network]
  • A. U.S. intercity passenger rail network
    The U.S. intercity passenger rail network is a nationwide system of medium- and long-distance train routes, primarily operated by Amtrak, that connects major cities and regions across the United States.
  • B. Chicago and North Western Railway commuter network
    The Chicago and North Western Railway commuter network was a suburban passenger rail system serving the Chicago metropolitan area, operating multiple lines that connected downtown Chicago with its outlying communities.
  • C. Amtrak Midwest services chosen
    Amtrak Midwest services are a network of state-supported intercity passenger rail routes connecting major cities across the Midwestern United States.
  • D. North American rail network
    The North American rail network is an extensive, interconnected system of freight and passenger rail lines spanning the United States, Canada, and Mexico, operated by multiple major and regional railroads.
  • E. Great Plains transportation network
    The Great Plains transportation network is an interconnected system of highways, rail lines, and other transport routes that facilitate regional travel and commerce across the central United States.
  • 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_69d8838a41f08190b0c3f79c47df5078 completed April 10, 2026, 4:58 a.m.
NER Named-entity recognition batch_69e37ad4735c81908a3a227bf02ca489 completed April 18, 2026, 12:36 p.m.
NED1 Entity disambiguation (via context triple) batch_6a0084bf0900819092db11456eb8e1c0 completed May 10, 2026, 1:14 p.m.
Created at: April 10, 2026, 5:18 a.m.