Triple

T7500696
Position Surface form Disambiguated ID Type / Status
Subject MBTA Commuter Rail (Old Colony Lines at JFK/UMass) E177251 entity
Predicate terminusOrPassesThrough P32039 FINISHED
Object JFK/UMass station E38179 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: JFK/UMass station | Statement: [MBTA Commuter Rail (Old Colony Lines at JFK/UMass), terminusOrPassesThrough, JFK/UMass station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: JFK/UMass station
Context triple: [MBTA Commuter Rail (Old Colony Lines at JFK/UMass), terminusOrPassesThrough, JFK/UMass station]
  • A. JFK/UMass station chosen
    JFK/UMass station is a major MBTA Red Line rapid transit and commuter rail hub in Boston serving the John F. Kennedy Presidential Library and the University of Massachusetts Boston.
  • B. Medford/Tufts station
    Medford/Tufts station is a Massachusetts Bay Transportation Authority light rail station in Medford serving Tufts University and the surrounding area.
  • C. Readville station
    Readville station is a Massachusetts Bay Transportation Authority commuter rail stop serving the Readville neighborhood in Boston’s Hyde Park area.
  • D. Medford station
    Medford station is a Long Island Rail Road commuter rail stop located in Medford, New York, serving passengers on the Ronkonkoma Branch.
  • E. Wellington Station (MBTA)
    Wellington Station (MBTA) is an Orange Line rapid transit station in Medford, Massachusetts, serving as a key park-and-ride and bus transfer hub just north of downtown Boston.
  • 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: terminusOrPassesThrough
Context triple: [MBTA Commuter Rail (Old Colony Lines at JFK/UMass), terminusOrPassesThrough, JFK/UMass station]
  • A. locatedAtTerminusOf
    Indicates that one entity is situated at the end point or final terminus of another entity, such as a route, line, or path.
  • B. servesAsThroughStationFor chosen
    Indicates that a station functions as an intermediate (through) stop for a particular service, route, or journey rather than as its starting or ending point.
  • C. isTransportHubBetween
    Indicates that a location functions as a central node facilitating transportation connections between two or more other places.
  • D. terminusInland
    Indicates that something ends, concludes, or has its final point within an inland area rather than at a coast or shoreline.
  • E. terminusJunction
    Indicates a relationship where a route, line, or path ends at a junction point that serves as its terminal connection.
  • 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_69c69f2696688190915a8458f2398211 completed March 27, 2026, 3:15 p.m.
NER Named-entity recognition batch_69c6f81b431481908214b69c6c8d83bc completed March 27, 2026, 9:35 p.m.
NED1 Entity disambiguation (via context triple) batch_69c84608021481908ce58a131d75188b completed March 28, 2026, 9:20 p.m.
PD Predicate disambiguation batch_69c6f4d266d88190982cf5d2ee2e9564 completed March 27, 2026, 9:21 p.m.
Created at: March 27, 2026, 3:44 p.m.