Triple

T7960457
Position Surface form Disambiguated ID Type / Status
Subject MBTA bus route 71 E184849 entity
Predicate connectsWith P37 FINISHED
Object MBTA Red Line at Harvard station
The MBTA Red Line at Harvard station is a key rapid transit stop in Cambridge, Massachusetts, serving Harvard Square and Harvard University as part of Boston’s primary subway network.
 E704681 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 Red Line at Harvard station | Statement: [MBTA bus route 71, connectsWith, MBTA Red Line at Harvard station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: MBTA Red Line at Harvard station
Context triple: [MBTA bus route 71, connectsWith, MBTA Red Line at Harvard station]
  • A. 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.
  • B. MBTA Green Line at Government Center
    The MBTA Green Line at Government Center is a major light rail subway station in downtown Boston that serves as a key transfer point and access hub for nearby civic and historic landmarks.
  • C. 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.
  • D. 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.
  • E. 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.
  • 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 Red Line at Harvard station
Triple: [MBTA bus route 71, connectsWith, MBTA Red Line at Harvard station]
Generated description
The MBTA Red Line at Harvard station is a key rapid transit stop in Cambridge, Massachusetts, serving Harvard Square and Harvard University as part of Boston’s primary subway network.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: MBTA Red Line at Harvard station
Target entity description: The MBTA Red Line at Harvard station is a key rapid transit stop in Cambridge, Massachusetts, serving Harvard Square and Harvard University as part of Boston’s primary subway network.
  • A. 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.
  • B. MBTA Green Line at Government Center
    The MBTA Green Line at Government Center is a major light rail subway station in downtown Boston that serves as a key transfer point and access hub for nearby civic and historic landmarks.
  • C. 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.
  • D. 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.
  • E. 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.
  • 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_69ca8293a2388190aace944d7ed9c0c0 completed March 30, 2026, 2:02 p.m.
NER Named-entity recognition batch_69cb3b8136448190890f007fb4fb7625 completed March 31, 2026, 3:12 a.m.
NED1 Entity disambiguation (via context triple) batch_69cbe084d9348190b4102fbdfedca297 completed March 31, 2026, 2:56 p.m.
NEDg Description generation batch_69cc46c11e68819087f5083bb85ec7ab completed March 31, 2026, 10:12 p.m.
NED2 Entity disambiguation (via description) batch_69cc47fa1524819089ef5b3f8bf7f670 completed March 31, 2026, 10:17 p.m.
Created at: March 30, 2026, 5:12 p.m.