Triple

T7048575
Position Surface form Disambiguated ID Type / Status
Subject Chicago (via Lake Shore Limited) E163705 entity
Predicate railroadCorridor P57554 FINISHED
Object Midwest–Northeast corridor
The Midwest–Northeast corridor is a major U.S. passenger rail route linking Chicago with key cities in the Northeastern United States.
E639529 NE FINISHED

How this triple was built (5 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–Northeast corridor | Statement: [Chicago (via Lake Shore Limited), railroadCorridor, Midwest–Northeast corridor]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Midwest–Northeast corridor
Context triple: [Chicago (via Lake Shore Limited), railroadCorridor, Midwest–Northeast 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. Northeast Corridor
    The Northeast Corridor is the busiest passenger rail line in the United States, running primarily Amtrak and commuter trains along the urbanized spine of the East Coast between major cities such as Washington, D.C., Philadelphia, New York City, and Boston.
  • C. New York–Scranton corridor
    The New York–Scranton corridor is a historically significant rail route linking New York City with Scranton, Pennsylvania, that served as a key passenger and freight artery in the northeastern United States.
  • D. 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.
  • E. New York City–Albany–Buffalo–Niagara Falls corridor
    The New York City–Albany–Buffalo–Niagara Falls corridor is a major passenger rail and transportation route spanning downstate to western New York, linking the state’s largest city with its capital and key upstate urban centers.
  • 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: Midwest–Northeast corridor
Triple: [Chicago (via Lake Shore Limited), railroadCorridor, Midwest–Northeast corridor]
Generated description
The Midwest–Northeast corridor is a major U.S. passenger rail route linking Chicago with key cities in the Northeastern United States.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Midwest–Northeast corridor
Target entity description: The Midwest–Northeast corridor is a major U.S. passenger rail route linking Chicago with key cities in the Northeastern United States.
  • 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. Northeast Corridor
    The Northeast Corridor is the busiest passenger rail line in the United States, running primarily Amtrak and commuter trains along the urbanized spine of the East Coast between major cities such as Washington, D.C., Philadelphia, New York City, and Boston.
  • C. New York–Scranton corridor
    The New York–Scranton corridor is a historically significant rail route linking New York City with Scranton, Pennsylvania, that served as a key passenger and freight artery in the northeastern United States.
  • D. 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.
  • E. New York City–Albany–Buffalo–Niagara Falls corridor
    The New York City–Albany–Buffalo–Niagara Falls corridor is a major passenger rail and transportation route spanning downstate to western New York, linking the state’s largest city with its capital and key upstate urban centers.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: railroadCorridor
Context triple: [Chicago (via Lake Shore Limited), railroadCorridor, Midwest–Northeast corridor]
  • A. partOfRailwayCorridor chosen
    Indicates that one entity is a segment, component, or area belonging to or contained within a specific railway corridor.
  • B. railwayLine
    Indicates that there is a railway line connection or route associated with or passing through the referenced entity.
  • C. railroadNetwork
    Indicates a relationship where locations are connected as part of the same system of railway lines and infrastructure used for train transport.
  • D. railroadMet
    Indicates that two or more railroads encountered or connected with each other at a specific place or time.
  • E. railTracks
    Indicates that one entity consists of, includes, or is associated with rail tracks used for guiding trains or rail vehicles.
  • F. None of above.

Provenance (6 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_69c6885f598c8190b6b6495c59d8d962 completed March 27, 2026, 1:38 p.m.
NER Named-entity recognition batch_69c6e4a3c36c819080942c59f1830ae8 completed March 27, 2026, 8:12 p.m.
NED1 Entity disambiguation (via context triple) batch_69c7888497b08190b1f2aa686e8e30c1 completed March 28, 2026, 7:51 a.m.
NEDg Description generation batch_69c78c31d57c8190a45d25ac77ff6280 completed March 28, 2026, 8:07 a.m.
NED2 Entity disambiguation (via description) batch_69c78d635c94819083463128483a60f6 completed March 28, 2026, 8:12 a.m.
PD Predicate disambiguation batch_69c6e1bb602081908bfa6186a1f5a4b4 completed March 27, 2026, 7:59 p.m.
Created at: March 27, 2026, 2:37 p.m.