Triple

T1295270
Position Surface form Disambiguated ID Type / Status
Subject Metra BNSF Railway Line E27639 entity
Predicate historicalOperator P2834 FINISHED
Object Chicago, Burlington and Quincy Railroad E114572 NE FINISHED

How this triple was built (2 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, Burlington and Quincy Railroad | Statement: [Metra BNSF Railway Line, historicalOperator, Chicago, Burlington and Quincy Railroad]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Chicago, Burlington and Quincy Railroad
Context triple: [Metra BNSF Railway Line, historicalOperator, Chicago, Burlington and Quincy Railroad]
  • A. Chicago, Burlington and Quincy Railroad chosen
    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 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.
  • C. Chicago North Shore and Milwaukee Railroad
    The Chicago North Shore and Milwaukee Railroad was an interurban electric railway that operated between Chicago and Milwaukee, providing high-speed commuter and intercity service along the Lake Michigan shoreline in the early to mid-20th century.
  • D. 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.
  • E. Chicago Railways Company
    The Chicago Railways Company was a major early 20th-century street railway operator in Chicago that formed a key part of the city’s urban transit system before consolidation into unified public transportation.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (3 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_69a496d6682881909ba658f1c1e0e2b0 completed March 1, 2026, 7:43 p.m.
NER Named-entity recognition batch_69a4c0f4031481908f5e3a53d8a72929 completed March 1, 2026, 10:43 p.m.
NED1 Entity disambiguation (via context triple) batch_69acce5fa07c8190a410461d51ef1f3a completed March 8, 2026, 1:18 a.m.
Created at: March 1, 2026, 7:51 p.m.