Triple

T7618061
Position Surface form Disambiguated ID Type / Status
Subject Michigan Central Railroad E172412 entity
Predicate majorRoute P385 FINISHED
Object Chicago–Kalamazoo–Detroit
Chicago–Kalamazoo–Detroit is a key intercity rail corridor in the Midwestern United States linking Chicago, Illinois with Kalamazoo and Detroit in Michigan.
 E679547 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–Kalamazoo–Detroit | Statement: [Michigan Central Railroad, majorRoute, Chicago–Kalamazoo–Detroit]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Chicago–Kalamazoo–Detroit
Context triple: [Michigan Central Railroad, majorRoute, Chicago–Kalamazoo–Detroit]
  • A. Detroit–Bay City
    Detroit–Bay City was a key intercity rail corridor in Michigan that linked the industrial hub of Detroit with the regional center of Bay City.
  • B. Toledo–Detroit–Windsor area
    The Toledo–Detroit–Windsor area is a cross-border Great Lakes metropolitan region spanning parts of southeastern Michigan, northwestern Ohio, and southwestern Ontario, centered on the cities of Detroit, Toledo, and Windsor.
  • C. Saginaw–Midland–Bay City CSA
    The Saginaw–Midland–Bay City CSA is a U.S. Census-defined combined statistical area in central Michigan that groups together the interconnected metropolitan and micropolitan regions centered on the cities of Saginaw, Midland, and Bay City.
  • D. Detroit
    Detroit is a major U.S. city in Michigan known historically as the center of the American automotive industry and for its influential contributions to music, particularly Motown.
  • E. Detroit–Warren–Dearborn Metropolitan Statistical Area
    The Detroit–Warren–Dearborn Metropolitan Statistical Area is a major U.S. metropolitan region in southeastern Michigan centered on the city of Detroit and its surrounding suburbs, serving as a key hub for the automotive industry and regional commerce.
  • 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–Kalamazoo–Detroit
Triple: [Michigan Central Railroad, majorRoute, Chicago–Kalamazoo–Detroit]
Generated description
Chicago–Kalamazoo–Detroit is a key intercity rail corridor in the Midwestern United States linking Chicago, Illinois with Kalamazoo and Detroit in Michigan.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Chicago–Kalamazoo–Detroit
Target entity description: Chicago–Kalamazoo–Detroit is a key intercity rail corridor in the Midwestern United States linking Chicago, Illinois with Kalamazoo and Detroit in Michigan.
  • A. Detroit–Bay City
    Detroit–Bay City was a key intercity rail corridor in Michigan that linked the industrial hub of Detroit with the regional center of Bay City.
  • B. Toledo–Detroit–Windsor area
    The Toledo–Detroit–Windsor area is a cross-border Great Lakes metropolitan region spanning parts of southeastern Michigan, northwestern Ohio, and southwestern Ontario, centered on the cities of Detroit, Toledo, and Windsor.
  • C. Saginaw–Midland–Bay City CSA
    The Saginaw–Midland–Bay City CSA is a U.S. Census-defined combined statistical area in central Michigan that groups together the interconnected metropolitan and micropolitan regions centered on the cities of Saginaw, Midland, and Bay City.
  • D. Detroit
    Detroit is a major U.S. city in Michigan known historically as the center of the American automotive industry and for its influential contributions to music, particularly Motown.
  • E. Detroit–Warren–Dearborn Metropolitan Statistical Area
    The Detroit–Warren–Dearborn Metropolitan Statistical Area is a major U.S. metropolitan region in southeastern Michigan centered on the city of Detroit and its surrounding suburbs, serving as a key hub for the automotive industry and regional commerce.
  • 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_69c699506b308190826894dab1d9ea86 completed March 27, 2026, 2:50 p.m.
NER Named-entity recognition batch_69c6fa4886ac819084188f54d280df35 completed March 27, 2026, 9:44 p.m.
NED1 Entity disambiguation (via context triple) batch_69c89aa7b264819096ddeda8e4c5ddb4 completed March 29, 2026, 3:21 a.m.
NEDg Description generation batch_69c89d0b32848190921807e453474ec6 completed March 29, 2026, 3:31 a.m.
NED2 Entity disambiguation (via description) batch_69c89d6b75b881908886ea9505c0b582 completed March 29, 2026, 3:32 a.m.
Created at: March 27, 2026, 3:55 p.m.