Triple

T21628898
Position Surface form Disambiguated ID Type / Status
Subject Panama Limited E533774 entity
Predicate operator P179 FINISHED
Object Illinois Central Railroad — NE NERFINISHED

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: Illinois Central Railroad | Statement: [Panama Limited, operator, Illinois Central Railroad]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Illinois Central Railroad
Context triple: [Panama Limited, operator, Illinois Central Railroad]
  • A. Illinois Central Railroad chosen
    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.
  • B. Illinois Terminal Railroad
    Illinois Terminal Railroad was an interurban electric railway system that operated in central Illinois, providing both passenger and freight service during the early to mid-20th century.
  • C. Chicago and Alton Railroad
    The Chicago and Alton Railroad was a prominent 19th- and early 20th-century Midwestern U.S. railroad that connected Chicago with central and southern Illinois and Missouri, playing a key role in regional passenger and freight transport.
  • D. Chicago and Illinois Midland Railway
    The Chicago and Illinois Midland Railway was a regional railroad in Illinois primarily known for hauling coal and serving industrial customers in the central part of the state.
  • E. Chicago and Eastern Illinois Railroad
    The Chicago and Eastern Illinois Railroad was a regional U.S. railroad that primarily served Illinois and neighboring states, later becoming part of the Missouri Pacific (MoPac) system.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (2 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_69e0c464fba881908d0ff2ac80511ce1 completed April 16, 2026, 11:13 a.m.
NER Named-entity recognition batch_69ef5214e72c8190af109089f58fca4f completed April 27, 2026, 12:09 p.m.
Created at: April 16, 2026, 6:34 p.m.