Triple

T5602732
Position Surface form Disambiguated ID Type / Status
Subject Illinois Central Railroad E147157 entity
Predicate notableLine P7250 FINISHED
Object Chicago–Sioux City line
The Chicago–Sioux City line is a historic Midwestern rail route that connected Chicago, Illinois, with Sioux City, Iowa, serving as a key corridor for passenger and freight traffic in the region.
E536885 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–Sioux City line | Statement: [Illinois Central Railroad, notableLine, Chicago–Sioux City line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Chicago–Sioux City line
Context triple: [Illinois Central Railroad, notableLine, Chicago–Sioux City line]
  • A. Chicago–Omaha main line
    The Chicago–Omaha main line was a principal transcontinental rail corridor in the Midwestern United States, linking Chicago with Omaha and serving as a key route for both passenger and freight traffic.
  • B. Chicago & North Western West Line
    The Chicago & North Western West Line was a historic commuter rail route in the Chicago area that later became part of Metra’s Union Pacific West Line.
  • C. Chicago, St. Paul, Minneapolis and Omaha Railway
    The Chicago, St. Paul, Minneapolis and Omaha Railway was a Midwestern U.S. railroad system that operated extensive regional passenger and freight services, particularly across Wisconsin, Minnesota, and surrounding states.
  • D. Iowa Interstate Railroad
    Iowa Interstate Railroad is a regional freight railroad operating across parts of Iowa and neighboring Midwestern states, connecting local industries to the national rail network.
  • E. Fox–Sauk–Kickapoo branch
    The Fox–Sauk–Kickapoo branch is a subgroup of the Algonquian language family that includes the closely related Fox, Sauk, and Kickapoo languages traditionally spoken in the Great Lakes and central United States region.
  • 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–Sioux City line
Triple: [Illinois Central Railroad, notableLine, Chicago–Sioux City line]
Generated description
The Chicago–Sioux City line is a historic Midwestern rail route that connected Chicago, Illinois, with Sioux City, Iowa, serving as a key corridor for passenger and freight traffic in the region.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Chicago–Sioux City line
Target entity description: The Chicago–Sioux City line is a historic Midwestern rail route that connected Chicago, Illinois, with Sioux City, Iowa, serving as a key corridor for passenger and freight traffic in the region.
  • A. Chicago–Omaha main line
    The Chicago–Omaha main line was a principal transcontinental rail corridor in the Midwestern United States, linking Chicago with Omaha and serving as a key route for both passenger and freight traffic.
  • B. Chicago & North Western West Line
    The Chicago & North Western West Line was a historic commuter rail route in the Chicago area that later became part of Metra’s Union Pacific West Line.
  • C. Chicago, St. Paul, Minneapolis and Omaha Railway
    The Chicago, St. Paul, Minneapolis and Omaha Railway was a Midwestern U.S. railroad system that operated extensive regional passenger and freight services, particularly across Wisconsin, Minnesota, and surrounding states.
  • D. Iowa Interstate Railroad
    Iowa Interstate Railroad is a regional freight railroad operating across parts of Iowa and neighboring Midwestern states, connecting local industries to the national rail network.
  • E. Fox–Sauk–Kickapoo branch
    The Fox–Sauk–Kickapoo branch is a subgroup of the Algonquian language family that includes the closely related Fox, Sauk, and Kickapoo languages traditionally spoken in the Great Lakes and central United States region.
  • 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_69c009043d648190a7af89698ccf1e3e completed March 22, 2026, 3:21 p.m.
NER Named-entity recognition batch_69c020dbd6dc8190ba011876c205754e completed March 22, 2026, 5:03 p.m.
NED1 Entity disambiguation (via context triple) batch_69c04d40049881908bf32e4932094c52 completed March 22, 2026, 8:12 p.m.
NEDg Description generation batch_69c04e88680c8190845723f52c060fb7 completed March 22, 2026, 8:18 p.m.
NED2 Entity disambiguation (via description) batch_69c04f7856848190a835c3ee0a32f649 completed March 22, 2026, 8:22 p.m.
Created at: March 22, 2026, 3:39 p.m.