Triple

T23119245
Position Surface form Disambiguated ID Type / Status
Subject Hamilton McKown Twombly E576843 entity
Predicate employer P7 FINISHED
Object Chicago and Great Western Railroad
The Chicago and Great Western Railroad was a 19th-century American railway company that operated lines in the Midwest, contributing to regional transportation and commerce.
E1578588 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 and Great Western Railroad | Statement: [Hamilton McKown Twombly, employer, Chicago and Great Western Railroad]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Chicago and Great Western Railroad
Context triple: [Hamilton McKown Twombly, employer, Chicago and Great Western Railroad]
  • A. Chicago, Burlington and Quincy Railroad
    The Chicago, Burlington and Quincy Railroad was a major American railroad company in the Midwestern and Western United States, known for its extensive passenger and freight services and its role in developing routes between Chicago, Denver, and the Pacific Coast.
  • B. Chicago, Rock Island and Pacific Railroad
    The Chicago, Rock Island and Pacific Railroad was a major Midwestern U.S. railroad that operated extensive passenger and freight services, notably connecting Chicago with cities across the Great Plains and Southwest, until its final liquidation in the 1980s.
  • C. Chicago and North Western Railway Company
    The Chicago and North Western Railway Company was a major Midwestern American railroad that operated an extensive network of lines connecting Chicago with the upper Midwest and Great Plains from the 19th through the 20th century.
  • D. Chicago and Erie Railroad
    The Chicago and Erie Railroad was a regional American railroad that connected Chicago with points in Indiana and Ohio, serving as an important Midwestern freight and passenger route in the late 19th and early 20th centuries.
  • E. Illinois Central Railroad
    The Illinois Central Railroad was a major American rail carrier that played a pivotal role in connecting the Midwest to the Gulf of Mexico and fostering economic development along its north–south route.
  • 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 and Great Western Railroad
Triple: [Hamilton McKown Twombly, employer, Chicago and Great Western Railroad]
Generated description
The Chicago and Great Western Railroad was a 19th-century American railway company that operated lines in the Midwest, contributing to regional transportation and commerce.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Chicago and Great Western Railroad
Target entity description: The Chicago and Great Western Railroad was a 19th-century American railway company that operated lines in the Midwest, contributing to regional transportation and commerce.
  • A. Chicago, Burlington and Quincy Railroad
    The Chicago, Burlington and Quincy Railroad was a major American railroad company in the Midwestern and Western United States, known for its extensive passenger and freight services and its role in developing routes between Chicago, Denver, and the Pacific Coast.
  • B. Chicago, Rock Island and Pacific Railroad
    The Chicago, Rock Island and Pacific Railroad was a major Midwestern U.S. railroad that operated extensive passenger and freight services, notably connecting Chicago with cities across the Great Plains and Southwest, until its final liquidation in the 1980s.
  • C. Chicago and North Western Railway Company
    The Chicago and North Western Railway Company was a major Midwestern American railroad that operated an extensive network of lines connecting Chicago with the upper Midwest and Great Plains from the 19th through the 20th century.
  • D. Chicago and Erie Railroad
    The Chicago and Erie Railroad was a regional American railroad that connected Chicago with points in Indiana and Ohio, serving as an important Midwestern freight and passenger route in the late 19th and early 20th centuries.
  • E. Illinois Central Railroad
    The Illinois Central Railroad was a major American rail carrier that played a pivotal role in connecting the Midwest to the Gulf of Mexico and fostering economic development along its north–south route.
  • 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_69e245f6c2e881909a228fdcfeb7c7d3 completed April 17, 2026, 2:38 p.m.
NER Named-entity recognition batch_69f18e4ece5481908d05b4b1e6a07db3 completed April 29, 2026, 4:51 a.m.
NED1 Entity disambiguation (via context triple) batch_6a0c3f396418819092176a12413710dd completed May 19, 2026, 10:45 a.m.
NEDg Description generation batch_6a0c43740a7c81909e9af7a9974a5700 completed May 19, 2026, 11:03 a.m.
NED2 Entity disambiguation (via description) batch_6a0c44d05c748190a5f4ab5f76dfcaab completed May 19, 2026, 11:09 a.m.
Created at: April 17, 2026, 3:59 p.m.