Triple

T1178214
Position Surface form Disambiguated ID Type / Status
Subject MBTA Green Line E25076 entity
Predicate hasBranch P35 FINISHED
Object D Branch
D Branch is a light rail service of Boston’s MBTA Green Line that runs primarily on a former commuter rail right-of-way between downtown Boston and Newton.
 E136891 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: D Branch | Statement: [MBTA Green Line, hasBranch, D Branch]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: D Branch
Context triple: [MBTA Green Line, hasBranch, D Branch]
  • A. B Branch
    The 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. C Branch
    The C Branch is a light rail service of Boston's MBTA Green Line that runs along Beacon Street between downtown Boston and the Cleveland Circle area of Brighton.
  • C. B Division
    B Division is the New York City Subway division that operates the system’s lettered routes, including services like the R train.
  • D. B Division
    B Division is a competitive grouping or tier within an organized league or tournament structure, typically representing an intermediate or secondary level of play.
  • E. Babylon Branch
    The Babylon Branch is a major commuter rail line of the Long Island Rail Road serving communities along Long Island’s South Shore.
  • 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: D Branch
Triple: [MBTA Green Line, hasBranch, D Branch]
Generated description
D Branch is a light rail service of Boston’s MBTA Green Line that runs primarily on a former commuter rail right-of-way between downtown Boston and Newton.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: D Branch
Target entity description: D Branch is a light rail service of Boston’s MBTA Green Line that runs primarily on a former commuter rail right-of-way between downtown Boston and Newton.
  • A. B Branch
    The 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. C Branch
    The C Branch is a light rail service of Boston's MBTA Green Line that runs along Beacon Street between downtown Boston and the Cleveland Circle area of Brighton.
  • C. B Division
    B Division is the New York City Subway division that operates the system’s lettered routes, including services like the R train.
  • D. B Division
    B Division is a competitive grouping or tier within an organized league or tournament structure, typically representing an intermediate or secondary level of play.
  • E. Babylon Branch
    The Babylon Branch is a major commuter rail line of the Long Island Rail Road serving communities along Long Island’s South Shore.
  • 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_69a494267b4c819088c97a59182bf56a completed March 1, 2026, 7:31 p.m.
NER Named-entity recognition batch_69a4bd10ccc481908d5bcef648aab3c1 completed March 1, 2026, 10:26 p.m.
NED1 Entity disambiguation (via context triple) batch_69ac764827b881908cd2bb1e11e179f3 completed March 7, 2026, 7:02 p.m.
NEDg Description generation batch_69ac77ba5cf08190a80a9e35f99aa7c3 completed March 7, 2026, 7:08 p.m.
NED2 Entity disambiguation (via description) batch_69ac781e4e5481909d56c790d46660ef completed March 7, 2026, 7:10 p.m.
Created at: March 1, 2026, 7:45 p.m.