Triple

T3942409
Position Surface form Disambiguated ID Type / Status
Subject Amtrak Wolverine service E92063 entity
Predicate primaryMarket P481 FINISHED
Object Chicago–Ann Arbor corridor
The Chicago–Ann Arbor corridor is a key Midwestern passenger rail route linking Chicago, Illinois with Ann Arbor, Michigan and other intermediate cities.
E404445 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: Chicago–Ann Arbor corridor | Statement: [Amtrak Wolverine service, primaryMarket, Chicago–Ann Arbor corridor]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Chicago–Ann Arbor corridor
Context triple: [Amtrak Wolverine service, primaryMarket, Chicago–Ann Arbor corridor]
  • A. Iowa City–Cedar Rapids Corridor
    The Iowa City–Cedar Rapids Corridor is a metropolitan region in eastern Iowa centered around the cities of Iowa City and Cedar Rapids, known for its intertwined economies, universities, and growing tech and service industries.
  • B. Omaha–Lincoln corridor
    The Omaha–Lincoln corridor is a heavily traveled urban and economic region in eastern Nebraska linking the state’s two largest cities, Omaha and Lincoln, along the Interstate 80 corridor.
  • C. Atlanta–Columbus corridor
    The Atlanta–Columbus corridor is a major transportation and economic route in western Georgia that links the Atlanta metropolitan area with the city of Columbus and the communities in between.
  • D. Pittsburgh–Chicago route
    The Pittsburgh–Chicago route was a major Pennsylvania Railroad passenger and freight corridor linking the industrial centers of Pittsburgh, Pennsylvania, and Chicago, Illinois.
  • E. Empire Corridor
    The Empire Corridor is a major passenger rail route in New York State, running from New York City through the Hudson Valley and up to cities such as Albany and Buffalo.
  • 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: Chicago–Ann Arbor corridor
Triple: [Amtrak Wolverine service, primaryMarket, Chicago–Ann Arbor corridor]
Generated description
The Chicago–Ann Arbor corridor is a key Midwestern passenger rail route linking Chicago, Illinois with Ann Arbor, Michigan and other intermediate cities.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Chicago–Ann Arbor corridor
Target entity description: The Chicago–Ann Arbor corridor is a key Midwestern passenger rail route linking Chicago, Illinois with Ann Arbor, Michigan and other intermediate cities.
  • A. Iowa City–Cedar Rapids Corridor
    The Iowa City–Cedar Rapids Corridor is a metropolitan region in eastern Iowa centered around the cities of Iowa City and Cedar Rapids, known for its intertwined economies, universities, and growing tech and service industries.
  • B. Omaha–Lincoln corridor
    The Omaha–Lincoln corridor is a heavily traveled urban and economic region in eastern Nebraska linking the state’s two largest cities, Omaha and Lincoln, along the Interstate 80 corridor.
  • C. Atlanta–Columbus corridor
    The Atlanta–Columbus corridor is a major transportation and economic route in western Georgia that links the Atlanta metropolitan area with the city of Columbus and the communities in between.
  • D. Pittsburgh–Chicago route
    The Pittsburgh–Chicago route was a major Pennsylvania Railroad passenger and freight corridor linking the industrial centers of Pittsburgh, Pennsylvania, and Chicago, Illinois.
  • E. Empire Corridor
    The Empire Corridor is a major passenger rail route in New York State, running from New York City through the Hudson Valley and up to cities such as Albany and Buffalo.
  • 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_69aed965502c8190904ebad1203a4ae8 completed March 9, 2026, 2:29 p.m.
NER Named-entity recognition batch_69aeedff736c8190b22e03d94c40f61a completed March 9, 2026, 3:57 p.m.
NED1 Entity disambiguation (via context triple) batch_69b53ff66f348190bf054c7666cb16fc completed March 14, 2026, 11:01 a.m.
NEDg Description generation batch_69b540eb53788190aa281ee38edc1729 completed March 14, 2026, 11:05 a.m.
NED2 Entity disambiguation (via description) batch_69b541a55cb081909ec1f87a7553b6f2 completed March 14, 2026, 11:08 a.m.
Created at: March 9, 2026, 3:24 p.m.