Triple

T14223285
Position Surface form Disambiguated ID Type / Status
Subject Lincoln Service E352550 entity
Predicate corridorName P3034 FINISHED
Object Chicago–St. Louis corridor
The Chicago–St. Louis corridor is a major Midwestern passenger rail route linking Chicago, Illinois, with St. Louis, Missouri, and serving as a key segment of Amtrak’s intercity service.
E1089097 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–St. Louis corridor | Statement: [Lincoln Service, corridorName, Chicago–St. Louis corridor]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Chicago–St. Louis corridor
Context triple: [Lincoln Service, corridorName, Chicago–St. Louis corridor]
  • A. Chicago–Quad Cities corridor
    The Chicago–Quad Cities corridor is a major transportation and economic link in northern Illinois connecting the Chicago metropolitan area with the Quad Cities region along the Mississippi River.
  • B. Chicago–Memphis corridor
    The Chicago–Memphis corridor is a major north–south transportation route in the central United States linking the Chicago metropolitan area with Memphis through a network of interstate highways.
  • C. Chicago–Indianapolis corridor
    The Chicago–Indianapolis corridor is a major Midwestern transportation route linking the metropolitan hubs of Chicago, Illinois and Indianapolis, Indiana by highway and rail.
  • D. Chicago–Aurora corridor
    The Chicago–Aurora corridor is a heavily traveled suburban rail and commuter route linking downtown Chicago with the city of Aurora in Illinois.
  • E. Chicago–South Bend corridor
    The Chicago–South Bend corridor is a regional passenger rail route linking the Chicago metropolitan area with South Bend, Indiana, via intermediate communities in northern Indiana.
  • 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–St. Louis corridor
Triple: [Lincoln Service, corridorName, Chicago–St. Louis corridor]
Generated description
The Chicago–St. Louis corridor is a major Midwestern passenger rail route linking Chicago, Illinois, with St. Louis, Missouri, and serving as a key segment of Amtrak’s intercity service.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Chicago–St. Louis corridor
Target entity description: The Chicago–St. Louis corridor is a major Midwestern passenger rail route linking Chicago, Illinois, with St. Louis, Missouri, and serving as a key segment of Amtrak’s intercity service.
  • A. Chicago–Quad Cities corridor
    The Chicago–Quad Cities corridor is a major transportation and economic link in northern Illinois connecting the Chicago metropolitan area with the Quad Cities region along the Mississippi River.
  • B. Chicago–Memphis corridor
    The Chicago–Memphis corridor is a major north–south transportation route in the central United States linking the Chicago metropolitan area with Memphis through a network of interstate highways.
  • C. Chicago–Indianapolis corridor
    The Chicago–Indianapolis corridor is a major Midwestern transportation route linking the metropolitan hubs of Chicago, Illinois and Indianapolis, Indiana by highway and rail.
  • D. Chicago–Aurora corridor
    The Chicago–Aurora corridor is a heavily traveled suburban rail and commuter route linking downtown Chicago with the city of Aurora in Illinois.
  • E. Chicago–South Bend corridor
    The Chicago–South Bend corridor is a regional passenger rail route linking the Chicago metropolitan area with South Bend, Indiana, via intermediate communities in northern Indiana.
  • 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_69d8278a06e481908b5d6af0a8afe737 completed April 9, 2026, 10:26 p.m.
NER Named-entity recognition batch_69de6227c288819081473ce44f9f0934 completed April 14, 2026, 3:49 p.m.
NED1 Entity disambiguation (via context triple) batch_69fd324f501081908f7017302bc40b3a completed May 8, 2026, 12:46 a.m.
NEDg Description generation batch_69fd33f6c8e08190810eab07ab94bc90 completed May 8, 2026, 12:53 a.m.
NED2 Entity disambiguation (via description) batch_69fd3453f7cc81909b183a8df2f5159f completed May 8, 2026, 12:54 a.m.
Created at: April 10, 2026, 1:06 a.m.