Triple

T11313633
Position Surface form Disambiguated ID Type / Status
Subject MBTA Commuter Rail Providence/Stoughton Line E267904 entity
Predicate commuterRailHub P726 FINISHED
Object South Station E18279 NE FINISHED

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: South Station | Statement: [MBTA Commuter Rail Providence/Stoughton Line, commuterRailHub, South Station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: South Station
Context triple: [MBTA Commuter Rail Providence/Stoughton Line, commuterRailHub, South Station]
  • A. South Station chosen
    South Station is Boston’s major intercity rail and bus terminal and a key MBTA subway hub in the city’s downtown.
  • B. North Station
    North Station is a major transportation hub in Boston, Massachusetts, serving as a key commuter rail, subway, and intercity bus terminal integrated with the TD Garden arena.
  • C. North Station
    North Station is a passenger stop on Detroit Metropolitan Airport’s McNamara Terminal ExpressTram, serving travelers moving along the terminal concourse.
  • D. MBTA North Station
    MBTA North Station is a major Boston transportation hub that serves as a key terminal for MBTA subway and commuter rail lines as well as Amtrak services.
  • E. Medford station
    Medford station is a Long Island Rail Road commuter rail stop located in Medford, New York, serving passengers on the Ronkonkoma Branch.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: commuterRailHub
Context triple: [MBTA Commuter Rail Providence/Stoughton Line, commuterRailHub, South Station]
  • A. commuterRailMode
    Indicates that the relationship involves travel or transportation specifically by commuter rail as the mode of transit between the related entities.
  • B. rapidTransitSystem
    Indicates a transportation relationship where people or goods are moved via a high-capacity, high-frequency public transit system designed for rapid travel over urban or regional routes.
  • C. subwayStation
    Indicates that one entity is a subway station associated with, located in, or serving the other entity.
  • D. hasRailStation chosen
    Indicates that one entity possesses, contains, or is served by a rail station.
  • E. railAccessModel
    Indicates the type or pattern of how rail infrastructure or services are accessed or connected between locations or entities.
  • F. None of above.

Provenance (4 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_69d6aaca5c24819083db46a30d86cb34 completed April 8, 2026, 7:21 p.m.
NER Named-entity recognition batch_69d7e9c2c7b081909af8acebc8aa93aa completed April 9, 2026, 6:02 p.m.
NED1 Entity disambiguation (via context triple) batch_69e542f294988190bb456326e4184dcb completed April 19, 2026, 9:02 p.m.
PD Predicate disambiguation batch_69d787ad575081908274280bf75d95fd completed April 9, 2026, 11:04 a.m.
Created at: April 8, 2026, 9:32 p.m.