Triple

T19005443
Position Surface form Disambiguated ID Type / Status
Subject Copley Place E465066 entity
Predicate connectedTo P37 FINISHED
Object MBTA Orange Line at Back Bay Station
MBTA Orange Line at Back Bay Station is a major Boston subway stop on the Orange Line that serves the Back Bay neighborhood and provides direct access to regional rail and nearby commercial centers.
E1353857 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: MBTA Orange Line at Back Bay Station | Statement: [Copley Place, connectedTo, MBTA Orange Line at Back Bay Station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: MBTA Orange Line at Back Bay Station
Context triple: [Copley Place, connectedTo, MBTA Orange Line at Back Bay Station]
  • A. MBTA Orange Line at North Station
    MBTA Orange Line at North Station is a major Boston rapid transit stop located at the North Station transportation hub, providing subway connections to commuter rail lines and nearby sports and entertainment venues.
  • B. MBTA Silver Line at South Station
    The MBTA Silver Line at South Station is a key Boston bus rapid transit hub providing underground and surface connections between South Station and destinations including the Seaport District and Logan Airport.
  • C. MBTA Green Line at Park Street station
    The MBTA Green Line at Park Street station is a central Boston light rail stop located on the Tremont Street Subway, serving multiple Green Line branches and providing key transfers to the Red Line.
  • D. MBTA Red Line at South Station
    The MBTA Red Line at South Station is a major rapid transit stop in downtown Boston that serves as a key hub for subway, commuter rail, intercity rail, and bus connections.
  • E. MBTA Blue Line at Government Center
    MBTA Blue Line at Government Center is an underground rapid transit station in downtown Boston that serves the Blue Line and provides a key transfer point to the Green Line.
  • 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: MBTA Orange Line at Back Bay Station
Triple: [Copley Place, connectedTo, MBTA Orange Line at Back Bay Station]
Generated description
MBTA Orange Line at Back Bay Station is a major Boston subway stop on the Orange Line that serves the Back Bay neighborhood and provides direct access to regional rail and nearby commercial centers.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: MBTA Orange Line at Back Bay Station
Target entity description: MBTA Orange Line at Back Bay Station is a major Boston subway stop on the Orange Line that serves the Back Bay neighborhood and provides direct access to regional rail and nearby commercial centers.
  • A. MBTA Orange Line at North Station
    MBTA Orange Line at North Station is a major Boston rapid transit stop located at the North Station transportation hub, providing subway connections to commuter rail lines and nearby sports and entertainment venues.
  • B. MBTA Silver Line at South Station
    The MBTA Silver Line at South Station is a key Boston bus rapid transit hub providing underground and surface connections between South Station and destinations including the Seaport District and Logan Airport.
  • C. MBTA Green Line at Park Street station
    The MBTA Green Line at Park Street station is a central Boston light rail stop located on the Tremont Street Subway, serving multiple Green Line branches and providing key transfers to the Red Line.
  • D. MBTA Red Line at South Station
    The MBTA Red Line at South Station is a major rapid transit stop in downtown Boston that serves as a key hub for subway, commuter rail, intercity rail, and bus connections.
  • E. MBTA Blue Line at Government Center
    MBTA Blue Line at Government Center is an underground rapid transit station in downtown Boston that serves the Blue Line and provides a key transfer point to the Green Line.
  • 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_69d8dd01a56c81909694a128c66b21d7 completed April 10, 2026, 11:20 a.m.
NER Named-entity recognition batch_69e5d6a494688190a277b2cddf300235 completed April 20, 2026, 7:32 a.m.
NED1 Entity disambiguation (via context triple) batch_6a05b45fe5d481908a50081362a5673c completed May 14, 2026, 11:39 a.m.
NEDg Description generation batch_6a05b5dfac0c8190b67921280d5ab1fe completed May 14, 2026, 11:45 a.m.
NED2 Entity disambiguation (via description) batch_6a05b68aba3081908ca21d732e45f454 completed May 14, 2026, 11:48 a.m.
Created at: April 10, 2026, 12:01 p.m.