Triple

T1127935
Position Surface form Disambiguated ID Type / Status
Subject Park Street E24761 entity
Predicate hasAdjacentStationOnGreenLine P25284 FINISHED
Object Boylston
Boylston is an MBTA Green Line subway station located near Boston Common in downtown Boston, Massachusetts.
E232560 NE FINISHED

How this triple was built (5 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: Boylston | Statement: [Park Street, hasAdjacentStationOnGreenLine, Boylston]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Boylston
Context triple: [Park Street, hasAdjacentStationOnGreenLine, Boylston]
  • A. Boston Common
    Boston Common is a historic central public park in downtown Boston and the oldest city park in the United States.
  • B. Allston, Massachusetts
    Allston, Massachusetts is a vibrant Boston neighborhood known for its large student population, diverse immigrant communities, and growing innovation and arts scene.
  • C. Brookline
    Brookline is an affluent, historic suburban town directly bordering Boston, known for its tree-lined streets, excellent public schools, and vibrant residential neighborhoods.
  • D. Cambridgeport
    Cambridgeport is a residential and commercial neighborhood in Cambridge, Massachusetts, located along the Charles River and known for its mix of historic housing, local businesses, and proximity to MIT.
  • E. Newtonville
    Newtonville is a residential and commercial village within the city of Newton, Massachusetts, known for its commuter rail access and small-town center.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg Description generation gpt-5.1
Instruction
Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Boylston
Triple: [Park Street, hasAdjacentStationOnGreenLine, Boylston]
Generated description
Boylston is an MBTA Green Line subway station located near Boston Common in downtown Boston, Massachusetts.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Boylston
Target entity description: Boylston is an MBTA Green Line subway station located near Boston Common in downtown Boston, Massachusetts.
  • A. Boston Common
    Boston Common is a historic central public park in downtown Boston and the oldest city park in the United States.
  • B. Allston, Massachusetts
    Allston, Massachusetts is a vibrant Boston neighborhood known for its large student population, diverse immigrant communities, and growing innovation and arts scene.
  • C. Brookline
    Brookline is an affluent, historic suburban town directly bordering Boston, known for its tree-lined streets, excellent public schools, and vibrant residential neighborhoods.
  • D. Cambridgeport
    Cambridgeport is a residential and commercial neighborhood in Cambridge, Massachusetts, located along the Charles River and known for its mix of historic housing, local businesses, and proximity to MIT.
  • E. Newtonville
    Newtonville is a residential and commercial village within the city of Newton, Massachusetts, known for its commuter rail access and small-town center.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: hasAdjacentStationOnGreenLine
Context triple: [Park Street, hasAdjacentStationOnGreenLine, Boylston]
  • A. hasAdjacentBusStation
    Indicates that one location has a bus station situated directly next to or very near it.
  • B. openedAsRedLineStation
    Indicates that a station began operation specifically as part of the Red Line when it first opened.
  • C. hasNearbyStateLine
    Indicates that one location is situated close to the boundary line of a neighboring state.
  • D. hasMetroLine
    Indicates that a location or area is served by, or connected to, a specific metro (subway) line.
  • E. adjacentStationOnChuoLine
    Indicates that two stations are directly next to each other as consecutive stops on the Chuo railway line.
  • F. None of above. chosen

Provenance (7 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_69a4940712c88190aa244f3fc6070a65 completed March 1, 2026, 7:31 p.m.
NER Named-entity recognition batch_69a4bc4bc21881909dcfe628f59f3e8c completed March 1, 2026, 10:23 p.m.
NED1 Entity disambiguation (via context triple) batch_69ae26ce527c8190988fd9a97ad06895 completed March 9, 2026, 1:47 a.m.
NEDg Description generation batch_69ae2763b4b08190b733e8342a52f75e completed March 9, 2026, 1:50 a.m.
NED2 Entity disambiguation (via description) batch_69ae27d10bf08190a14fa1ca906646f8 completed March 9, 2026, 1:52 a.m.
PD Predicate disambiguation batch_69a4bb48de2081909a0dce005b1c9df1 completed March 1, 2026, 10:18 p.m.
PDg Predicate description generation batch_69a4bc47fce48190825d3a877251f789 completed March 1, 2026, 10:23 p.m.
Created at: March 1, 2026, 7:44 p.m.