Triple

T11504540
Position Surface form Disambiguated ID Type / Status
Subject Randolph Street Terminal E272747 entity
Predicate servedLine P1293 FINISHED
Object Illinois Central Railroad suburban service E147157 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: Illinois Central Railroad suburban service | Statement: [Randolph Street Terminal, servedLine, Illinois Central Railroad suburban service]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Illinois Central Railroad suburban service
Context triple: [Randolph Street Terminal, servedLine, Illinois Central Railroad suburban service]
  • A. Rock Island District suburban commuter service
    Rock Island District suburban commuter service is a Metra-operated commuter rail line in the Chicago area that connects downtown Chicago with its southwestern suburbs.
  • B. Chicago Great Western Railway
    The Chicago Great Western Railway was a regional American railroad that operated in the Midwest, known for its efficient freight service and eventual absorption into larger rail systems.
  • C. Illini (Amtrak)
    The Illini is an Amtrak passenger train service operating in Illinois, primarily connecting Chicago with Carbondale and serving intermediate communities along the route.
  • D. Chicago and North Western Railway commuter network
    The Chicago and North Western Railway commuter network was a suburban passenger rail system serving the Chicago metropolitan area, operating multiple lines that connected downtown Chicago with its outlying communities.
  • E. 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.
  • 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_69d6aae2c3748190bed2ea50dfb160dc completed April 8, 2026, 7:22 p.m.
NER Named-entity recognition batch_69d86db2f4b08190801de1b773932f59 completed April 10, 2026, 3:25 a.m.
NED1 Entity disambiguation (via context triple) batch_69e624d666c081908253cea4e2da1a4a completed April 20, 2026, 1:06 p.m.
Created at: April 8, 2026, 9:36 p.m.