Triple

T4781016
Position Surface form Disambiguated ID Type / Status
Subject Jackson Amtrak station E106163 entity
Predicate servedByRoute P31354 FINISHED
Object Chicago–Detroit/Pontiac corridor
The Chicago–Detroit/Pontiac corridor is a major Midwestern passenger rail route that connects Chicago with Detroit and Pontiac, serving numerous intermediate cities across Illinois and Michigan.
 E470759 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–Detroit/Pontiac corridor | Statement: [Jackson Amtrak station, servedByRoute, Chicago–Detroit/Pontiac corridor]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Chicago–Detroit/Pontiac corridor
Context triple: [Jackson Amtrak station, servedByRoute, Chicago–Detroit/Pontiac corridor]
  • A. 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.
  • B. Chicago–Milwaukee metropolitan corridor
    The Chicago–Milwaukee metropolitan corridor is a heavily urbanized and economically integrated region stretching along Lake Michigan between Chicago, Illinois, and Milwaukee, Wisconsin.
  • C. Rochester metropolitan area
    The Rochester metropolitan area is a major urban region in western New York centered on the city of Rochester, known for its educational institutions, technology and imaging industries, and cultural attractions.
  • D. Southeast Michigan
    Southeast Michigan is a region anchored by Detroit that serves as the historic heart of the U.S. automotive industry and a major center for manufacturing and engineering.
  • E. Quebec City–Windsor Corridor
    The Quebec City–Windsor Corridor is Canada’s most densely populated and heavily traveled urban and transportation corridor, stretching through major cities in Quebec and Ontario including Quebec City, Montreal, Ottawa, Toronto, and Windsor.
  • 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–Detroit/Pontiac corridor
Triple: [Jackson Amtrak station, servedByRoute, Chicago–Detroit/Pontiac corridor]
Generated description
The Chicago–Detroit/Pontiac corridor is a major Midwestern passenger rail route that connects Chicago with Detroit and Pontiac, serving numerous intermediate cities across Illinois and Michigan.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Chicago–Detroit/Pontiac corridor
Target entity description: The Chicago–Detroit/Pontiac corridor is a major Midwestern passenger rail route that connects Chicago with Detroit and Pontiac, serving numerous intermediate cities across Illinois and Michigan.
  • A. 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.
  • B. Chicago–Milwaukee metropolitan corridor
    The Chicago–Milwaukee metropolitan corridor is a heavily urbanized and economically integrated region stretching along Lake Michigan between Chicago, Illinois, and Milwaukee, Wisconsin.
  • C. Rochester metropolitan area
    The Rochester metropolitan area is a major urban region in western New York centered on the city of Rochester, known for its educational institutions, technology and imaging industries, and cultural attractions.
  • D. Southeast Michigan
    Southeast Michigan is a region anchored by Detroit that serves as the historic heart of the U.S. automotive industry and a major center for manufacturing and engineering.
  • E. Quebec City–Windsor Corridor
    The Quebec City–Windsor Corridor is Canada’s most densely populated and heavily traveled urban and transportation corridor, stretching through major cities in Quebec and Ontario including Quebec City, Montreal, Ottawa, Toronto, and Windsor.
  • 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_69bd43f3074c8190937e7b0a457fe9f1 completed March 20, 2026, 12:56 p.m.
NER Named-entity recognition batch_69bd65aa577c81909ec1b94e47810169 completed March 20, 2026, 3:20 p.m.
NED1 Entity disambiguation (via context triple) batch_69be43d371b081908142e6d66780e0f0 completed March 21, 2026, 7:08 a.m.
NEDg Description generation batch_69be46f9aa048190a5d0ada90ee57451 completed March 21, 2026, 7:21 a.m.
NED2 Entity disambiguation (via description) batch_69be481013c08190b36304044a16c5f4 completed March 21, 2026, 7:26 a.m.
Created at: March 20, 2026, 1:21 p.m.