Triple

T23051426
Position Surface form Disambiguated ID Type / Status
Subject Amtrak at South Station E574023 entity
Predicate terminusFor P388 FINISHED
Object Acela (Boston terminus) — 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: Acela (Boston terminus) | Statement: [Amtrak at South Station, terminusFor, Acela (Boston terminus)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Acela (Boston terminus)
Context triple: [Amtrak at South Station, terminusFor, Acela (Boston terminus)]
  • A. Amtrak Providence Station
    Amtrak Providence Station is a major intercity and commuter rail hub in downtown Providence, Rhode Island, serving Amtrak’s Northeast Corridor and MBTA commuter rail services.
  • B. Belmont station
    Belmont station is a major Chicago Transit Authority 'L' station on the North Side that serves as a key transfer point between multiple rapid transit lines.
  • C. Belmont station
    Belmont station is a commuter rail stop in Downers Grove, Illinois, served by Metra’s BNSF Railway Line connecting the suburb to downtown Chicago.
  • D. Jackson Amtrak station
    Jackson Amtrak station is a historic passenger rail station in Jackson, Michigan, serving Amtrak trains on the Wolverine line between Chicago and Detroit/Pontiac.
  • E. Westport station
    Westport station is a commuter rail stop on the Metro-North Railroad’s New Haven Line serving passengers in and around Westport, Connecticut.
  • 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: Acela (Boston terminus)
Target entity description: Acela (Boston terminus) is the Boston endpoint of Amtrak’s high-speed Acela service, located at South Station.
  • A. Amtrak Providence Station
    Amtrak Providence Station is a major intercity and commuter rail hub in downtown Providence, Rhode Island, serving Amtrak’s Northeast Corridor and MBTA commuter rail services.
  • B. Belmont station
    Belmont station is a major Chicago Transit Authority 'L' station on the North Side that serves as a key transfer point between multiple rapid transit lines.
  • C. Belmont station
    Belmont station is a commuter rail stop in Downers Grove, Illinois, served by Metra’s BNSF Railway Line connecting the suburb to downtown Chicago.
  • D. Jackson Amtrak station
    Jackson Amtrak station is a historic passenger rail station in Jackson, Michigan, serving Amtrak trains on the Wolverine line between Chicago and Detroit/Pontiac.
  • E. Westport station
    Westport station is a commuter rail stop on the Metro-North Railroad’s New Haven Line serving passengers in and around Westport, Connecticut.
  • F. None of above. chosen

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_69e245ba7ae48190be606dbc54120e39 completed April 17, 2026, 2:37 p.m.
NER Named-entity recognition batch_69f1867d010c8190bc5dba6758d0b797 completed April 29, 2026, 4:18 a.m.
Created at: April 17, 2026, 3:54 p.m.