Triple

T8572739
Position Surface form Disambiguated ID Type / Status
Subject Sullivan Square E202966 entity
Predicate hasLandmark P105 FINISHED
Object Sullivan Square MBTA busway
Sullivan Square MBTA busway is a major bus transfer facility in Boston’s Sullivan Square area that connects numerous MBTA bus routes with the adjacent Orange Line subway station.
E742505 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: Sullivan Square MBTA busway | Statement: [Sullivan Square, hasLandmark, Sullivan Square MBTA busway]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Sullivan Square MBTA busway
Context triple: [Sullivan Square, hasLandmark, Sullivan Square MBTA busway]
  • A. South Boston Transitway
    The South Boston Transitway is an underground bus rapid transit tunnel in Boston that carries MBTA Silver Line routes between South Station and the Seaport District.
  • B. Rose Kennedy Greenway
    The Rose Kennedy Greenway is a contemporary linear park in downtown Boston featuring gardens, public art, and community events along the former elevated highway corridor.
  • C. Park Street MBTA station
    Park Street MBTA station is a major downtown Boston subway hub on the MBTA’s Green and Red Lines, located at the eastern edge of Boston Common.
  • D. Porter Square MBTA Red Line station
    Porter Square MBTA Red Line station is an underground rapid transit and commuter rail hub in Cambridge, Massachusetts, serving the MBTA Red Line and Fitchburg Line with access to the surrounding Porter Square commercial district.
  • E. Union Square, Allston
    Union Square in Allston is a busy commercial and transit hub in Boston’s Allston neighborhood, known for its shops, restaurants, and frequent bus connections.
  • 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: Sullivan Square MBTA busway
Triple: [Sullivan Square, hasLandmark, Sullivan Square MBTA busway]
Generated description
Sullivan Square MBTA busway is a major bus transfer facility in Boston’s Sullivan Square area that connects numerous MBTA bus routes with the adjacent Orange Line subway station.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Sullivan Square MBTA busway
Target entity description: Sullivan Square MBTA busway is a major bus transfer facility in Boston’s Sullivan Square area that connects numerous MBTA bus routes with the adjacent Orange Line subway station.
  • A. South Boston Transitway
    The South Boston Transitway is an underground bus rapid transit tunnel in Boston that carries MBTA Silver Line routes between South Station and the Seaport District.
  • B. Rose Kennedy Greenway
    The Rose Kennedy Greenway is a contemporary linear park in downtown Boston featuring gardens, public art, and community events along the former elevated highway corridor.
  • C. Park Street MBTA station
    Park Street MBTA station is a major downtown Boston subway hub on the MBTA’s Green and Red Lines, located at the eastern edge of Boston Common.
  • D. Porter Square MBTA Red Line station
    Porter Square MBTA Red Line station is an underground rapid transit and commuter rail hub in Cambridge, Massachusetts, serving the MBTA Red Line and Fitchburg Line with access to the surrounding Porter Square commercial district.
  • E. Union Square, Allston
    Union Square in Allston is a busy commercial and transit hub in Boston’s Allston neighborhood, known for its shops, restaurants, and frequent bus connections.
  • 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_69ca8327b0a881908606ff860713964d completed March 30, 2026, 2:05 p.m.
NER Named-entity recognition batch_69cbea43843c8190ac2224d427bb7a75 completed March 31, 2026, 3:37 p.m.
NED1 Entity disambiguation (via context triple) batch_69ce898cf8648190b52758b6ecf2959b completed April 2, 2026, 3:21 p.m.
NEDg Description generation batch_69ce8a9df47c81909ba9ef8dff1db7b1 completed April 2, 2026, 3:26 p.m.
NED2 Entity disambiguation (via description) batch_69ce8b48841c8190bcf11aeb25355649 completed April 2, 2026, 3:29 p.m.
Created at: March 30, 2026, 6:21 p.m.