Triple

T20179227
Position Surface form Disambiguated ID Type / Status
Subject Chicago–Twin Cities route E492680 entity
Predicate servedByNamedTrain P138983 FINISHED
Object Twin Cities Hiawatha — 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: Twin Cities Hiawatha | Statement: [Chicago–Twin Cities route, servedByNamedTrain, Twin Cities Hiawatha]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Twin Cities Hiawatha
Context triple: [Chicago–Twin Cities route, servedByNamedTrain, Twin Cities Hiawatha]
  • A. Twin Cities Hiawatha chosen
    Twin Cities Hiawatha was a streamlined inter-city passenger train that provided fast, stylish service between Chicago and the Minneapolis–Saint Paul "Twin Cities" during the mid-20th century.
  • B. Twin Cities Zephyr
    The Twin Cities Zephyr was a streamlined passenger train that provided fast, stylish service between Chicago and the Minneapolis–St. Paul "Twin Cities" during the mid-20th century.
  • C. Amtrak Hiawatha Service
    Amtrak Hiawatha Service is a frequent intercity passenger rail route operated by Amtrak between Chicago, Illinois, and Milwaukee, Wisconsin.
  • D. Minneapolis–Saint Paul METRO system
    The Minneapolis–Saint Paul METRO system is the Twin Cities’ regional rapid transit network, consisting of light rail and bus rapid transit lines operated by Metro Transit.
  • E. North Coast Hiawatha (via successor)
    The North Coast Hiawatha was a former Amtrak long-distance passenger train that operated between Chicago and the Pacific Northwest, serving as an important transcontinental route in the 1970s.
  • 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_69da6268a034819081cbd9ea5a1c9475 completed April 11, 2026, 3:02 p.m.
NER Named-entity recognition batch_69e668ed07c8819091bd9ffda237a91c completed April 20, 2026, 5:57 p.m.
Created at: April 11, 2026, 11:36 p.m.