Triple

T6050718
Position Surface form Disambiguated ID Type / Status
Subject Copley E134784 entity
Predicate isTransferPointFor P20604 FINISHED
Object Green Line branches
Green Line branches are the multiple service routes of Boston's MBTA Green Line light rail system that diverge to serve different neighborhoods and suburbs.
 E564604 NE FINISHED

How this triple was built (4 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: Green Line branches | Statement: [Copley, isTransferPointFor, Green Line branches]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Green Line branches
Context triple: [Copley, isTransferPointFor, Green Line branches]
  • A. Green Line B branch
    The Green Line B branch is a light rail service of Boston's MBTA Green Line that runs along Commonwealth Avenue, primarily serving Boston University and the Allston–Brighton neighborhoods.
  • B. Green Line C Branch
    The Green Line C Branch is a light rail service of Boston's MBTA Green Line that runs primarily along Beacon Street between downtown Boston and the suburb of Brookline.
  • C. Green Line Ashland/63rd Branch
    The Green Line Ashland/63rd Branch is a Chicago 'L' rapid transit branch on the CTA's Green Line that runs through the city's South Side to the Ashland/63rd terminal.
  • D. Green Line E branch
    The Green Line E branch is a light rail service of Boston's MBTA Green Line that runs from downtown through the Back Bay and Longwood Medical Area to Heath Street in Jamaica Plain.
  • E. Red Line and Green Line
    Red Line and Green Line are two key Boston MBTA subway lines that intersect at Park Street Station, serving as major routes through the city and surrounding areas.
  • 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: Green Line branches
Triple: [Copley, isTransferPointFor, Green Line branches]
Generated description
Green Line branches are the multiple service routes of Boston's MBTA Green Line light rail system that diverge to serve different neighborhoods and suburbs.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Green Line branches
Target entity description: Green Line branches are the multiple service routes of Boston's MBTA Green Line light rail system that diverge to serve different neighborhoods and suburbs.
  • A. Green Line B branch
    The Green Line B branch is a light rail service of Boston's MBTA Green Line that runs along Commonwealth Avenue, primarily serving Boston University and the Allston–Brighton neighborhoods.
  • B. Green Line C Branch
    The Green Line C Branch is a light rail service of Boston's MBTA Green Line that runs primarily along Beacon Street between downtown Boston and the suburb of Brookline.
  • C. Green Line Ashland/63rd Branch
    The Green Line Ashland/63rd Branch is a Chicago 'L' rapid transit branch on the CTA's Green Line that runs through the city's South Side to the Ashland/63rd terminal.
  • D. Green Line E branch
    The Green Line E branch is a light rail service of Boston's MBTA Green Line that runs from downtown through the Back Bay and Longwood Medical Area to Heath Street in Jamaica Plain.
  • E. Red Line and Green Line
    Red Line and Green Line are two key Boston MBTA subway lines that intersect at Park Street Station, serving as major routes through the city and surrounding areas.
  • F. None of above. chosen

Provenance (5 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_69c00877b6d4819096b0e163728b73a3 completed March 22, 2026, 3:19 p.m.
NER Named-entity recognition batch_69c056f66cb08190a782cdd038f26b93 completed March 22, 2026, 8:54 p.m.
NED1 Entity disambiguation (via context triple) batch_69c113a911548190b4269d094f65308d completed March 23, 2026, 10:19 a.m.
NEDg Description generation batch_69c11423d05c81909298ae598c80ccb0 completed March 23, 2026, 10:21 a.m.
NED2 Entity disambiguation (via description) batch_69c11498f2948190bcca6b8054186e75 completed March 23, 2026, 10:23 a.m.
Created at: March 22, 2026, 4:09 p.m.