Triple

T21637273
Position Surface form Disambiguated ID Type / Status
Subject Amtrak Metropolitan Lounge E533992 entity
Predicate adjacentTo P224 FINISHED
Object Amtrak concourse at Chicago Union Station NE NERFINISHED

How this triple was built (3 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: Amtrak concourse at Chicago Union Station | Statement: [Amtrak Metropolitan Lounge, adjacentTo, Amtrak concourse at Chicago Union Station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Amtrak concourse at Chicago Union Station
Context triple: [Amtrak Metropolitan Lounge, adjacentTo, Amtrak concourse at Chicago Union Station]
  • A. Amtrak ticket office
    An Amtrak ticket office is a staffed service location where passengers can purchase train tickets, make reservations, and obtain travel information for Amtrak rail services.
  • B. Amtrak tracks at Penn Station
    Amtrak tracks at Penn Station are the below-ground rail lines and platforms in Midtown Manhattan that serve Amtrak’s intercity trains and are accessed in part through the adjacent Moynihan Train Hall.
  • C. Amtrak services at Chicago Union Station
    Amtrak services at Chicago Union Station comprise a major hub of intercity passenger rail routes connecting Chicago with numerous destinations across the United States.
  • D. Amtrak at Back Bay station
    Amtrak at Back Bay station refers to the intercity passenger rail services, including routes like the Northeast Regional and Acela, that stop at Boston’s centrally located Back Bay transportation hub.
  • E. Colfax Amtrak station
    Colfax Amtrak station is a passenger rail station in the historic Gold Rush town of Colfax, California, serving Amtrak’s California Zephyr route.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Amtrak concourse at Chicago Union Station
Target entity description: The Amtrak concourse at Chicago Union Station is the primary passenger circulation and boarding area for Amtrak trains in Chicago, connecting ticketing, waiting spaces, and platforms within the historic rail hub.
  • A. Amtrak ticket office
    An Amtrak ticket office is a staffed service location where passengers can purchase train tickets, make reservations, and obtain travel information for Amtrak rail services.
  • B. Amtrak tracks at Penn Station
    Amtrak tracks at Penn Station are the below-ground rail lines and platforms in Midtown Manhattan that serve Amtrak’s intercity trains and are accessed in part through the adjacent Moynihan Train Hall.
  • C. Amtrak services at Chicago Union Station chosen
    Amtrak services at Chicago Union Station comprise a major hub of intercity passenger rail routes connecting Chicago with numerous destinations across the United States.
  • D. Amtrak at Back Bay station
    Amtrak at Back Bay station refers to the intercity passenger rail services, including routes like the Northeast Regional and Acela, that stop at Boston’s centrally located Back Bay transportation hub.
  • E. Colfax Amtrak station
    Colfax Amtrak station is a passenger rail station in the historic Gold Rush town of Colfax, California, serving Amtrak’s California Zephyr route.
  • F. None of above.

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_69e0c465ae7481908577b7209fdb2a77 completed April 16, 2026, 11:13 a.m.
NER Named-entity recognition batch_69ef538eef0481908f5bf0e27f8e054d completed April 27, 2026, 12:16 p.m.
Created at: April 16, 2026, 6:35 p.m.