Triple

T19612195
Position Surface form Disambiguated ID Type / Status
Subject Chicago–Detroit/Pontiac corridor E470759 entity
Predicate servedByService P1294 FINISHED
Object Blue Water (Amtrak service) 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: Blue Water (Amtrak service) | Statement: [Chicago–Detroit/Pontiac corridor, servedByService, Blue Water (Amtrak service)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Blue Water (Amtrak service)
Context triple: [Chicago–Detroit/Pontiac corridor, servedByService, Blue Water (Amtrak service)]
  • A. Amtrak Blue Water chosen
    Amtrak Blue Water is a passenger rail service operated by Amtrak that runs between Chicago, Illinois, and Port Huron, Michigan, serving communities across southern and central Michigan.
  • B. Amtrak Sunset Limited
    The Amtrak Sunset Limited is a long-distance passenger train route that runs between the American South and West, offering overnight service with Superliner bi-level cars.
  • C. Amtrak Hell Gate Line
    The Amtrak Hell Gate Line is a major electrified rail corridor in New York City that carries intercity and commuter trains between Queens, the Bronx, and Manhattan via the Hell Gate Bridge.
  • D. Amtrak Lake Shore Limited
    Amtrak Lake Shore Limited is a long-distance passenger train service that runs between Chicago and the Northeastern United States, primarily serving New York City and Boston.
  • E. West Coast Express
    West Coast Express is a commuter rail service in British Columbia, Canada, that operates weekday trains between downtown Vancouver and its eastern suburbs along the north shore of the Fraser River.
  • 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_69d8e510fa248190b7afb274a1d4cf73 completed April 10, 2026, 11:54 a.m.
NER Named-entity recognition batch_69e640cbeda08190addb1adf84af4993 completed April 20, 2026, 3:05 p.m.
Created at: April 10, 2026, 1:43 p.m.