Triple

T6759378
Position Surface form Disambiguated ID Type / Status
Subject Northern Pacific Railway E154551 entity
Predicate operatedService P5884 FINISHED
Object 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.
E618675 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: North Coast Hiawatha (via successor) | Statement: [Northern Pacific Railway, operatedService, North Coast Hiawatha (via successor)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: North Coast Hiawatha (via successor)
Context triple: [Northern Pacific Railway, operatedService, North Coast Hiawatha (via successor)]
  • A. Amtrak Hiawatha Service
    Amtrak Hiawatha Service is a frequent intercity passenger rail route operated by Amtrak between Chicago, Illinois, and Milwaukee, Wisconsin.
  • B. Twin Cities Hiawatha
    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.
  • C. Hiawatha Line
    The Hiawatha Line, now known as the METRO Blue Line, is a light rail transit route serving the Minneapolis–Saint Paul metropolitan area in Minnesota.
  • D. Amtrak Pere Marquette line
    The Amtrak Pere Marquette line is a passenger rail route in the Midwestern United States that connects Chicago with several cities along the eastern shore of Lake Michigan.
  • E. Amtrak Wolverine service
    Amtrak Wolverine service is a passenger rail line operated by Amtrak that runs between Chicago and Pontiac in Michigan, serving key cities across the state.
  • 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: North Coast Hiawatha (via successor)
Triple: [Northern Pacific Railway, operatedService, North Coast Hiawatha (via successor)]
Generated description
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.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: North Coast Hiawatha (via successor)
Target entity description: 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.
  • A. Amtrak Hiawatha Service
    Amtrak Hiawatha Service is a frequent intercity passenger rail route operated by Amtrak between Chicago, Illinois, and Milwaukee, Wisconsin.
  • B. Twin Cities Hiawatha
    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.
  • C. Hiawatha Line
    The Hiawatha Line, now known as the METRO Blue Line, is a light rail transit route serving the Minneapolis–Saint Paul metropolitan area in Minnesota.
  • D. Amtrak Pere Marquette line
    The Amtrak Pere Marquette line is a passenger rail route in the Midwestern United States that connects Chicago with several cities along the eastern shore of Lake Michigan.
  • E. Amtrak Wolverine service
    Amtrak Wolverine service is a passenger rail line operated by Amtrak that runs between Chicago and Pontiac in Michigan, serving key cities across the state.
  • 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_69c6880fd5808190be684854081e27dd completed March 27, 2026, 1:37 p.m.
NER Named-entity recognition batch_69c6d21143748190beaab2488971d65b completed March 27, 2026, 6:53 p.m.
NED1 Entity disambiguation (via context triple) batch_69c712b0926c81909601f21407526fd9 completed March 27, 2026, 11:28 p.m.
NEDg Description generation batch_69c7135106288190b5b20523c3efa229 completed March 27, 2026, 11:31 p.m.
NED2 Entity disambiguation (via description) batch_69c7141cd52c8190a783590ad1067840 completed March 27, 2026, 11:34 p.m.
Created at: March 27, 2026, 2:12 p.m.