Triple

T269509
Position Surface form Disambiguated ID Type / Status
Subject MBTA Green Line D branch E5598 entity
Predicate servesInstitutionNearby P6776 FINISHED
Object Northeastern University (via nearby E branch transfer at Park Street)
Northeastern University is a private research university in Boston, Massachusetts, known for its cooperative education (co-op) programs that integrate classroom study with professional experience.
E34908 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: Northeastern University (via nearby E branch transfer at Park Street) | Statement: [MBTA Green Line D branch, servesInstitutionNearby, Northeastern University (via nearby E branch transfer at Park Street)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Northeastern University (via nearby E branch transfer at Park Street)
Context triple: [MBTA Green Line D branch, servesInstitutionNearby, Northeastern University (via nearby E branch transfer at Park Street)]
  • A. MBTA Green Line D branch (nearby stations)
    The MBTA Green Line D branch is a light rail line in Greater Boston that runs between downtown Boston and several western suburbs, including Newton, providing frequent local transit service.
  • B. Porter (MBTA station)
    Porter (MBTA station) is a transit station in Cambridge, Massachusetts, serving the MBTA Red Line subway and commuter rail with a notably deep underground platform.
  • C. Boston’s North Station (via Fitchburg Line)
    Boston’s North Station (via Fitchburg Line) is a major MBTA commuter rail terminal in Boston that serves as the downtown endpoint for the Fitchburg Line and several other northside rail routes.
  • D. MBTA Green Line E branch
    The MBTA Green Line E branch is a light rail line in Boston that runs from downtown through the Back Bay and Longwood Medical Area to Heath Street, serving major hospitals, universities, and residential neighborhoods.
  • E. MBTA Silver Hill station
    MBTA Silver Hill station is a small commuter rail stop on the Massachusetts Bay Transportation Authority’s Fitchburg Line serving the Silver Hill neighborhood of Weston, Massachusetts.
  • 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: Northeastern University (via nearby E branch transfer at Park Street)
Triple: [MBTA Green Line D branch, servesInstitutionNearby, Northeastern University (via nearby E branch transfer at Park Street)]
Generated description
Northeastern University is a private research university in Boston, Massachusetts, known for its cooperative education (co-op) programs that integrate classroom study with professional experience.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Northeastern University (via nearby E branch transfer at Park Street)
Target entity description: Northeastern University is a private research university in Boston, Massachusetts, known for its cooperative education (co-op) programs that integrate classroom study with professional experience.
  • A. MBTA Green Line D branch (nearby stations)
    The MBTA Green Line D branch is a light rail line in Greater Boston that runs between downtown Boston and several western suburbs, including Newton, providing frequent local transit service.
  • B. Porter (MBTA station)
    Porter (MBTA station) is a transit station in Cambridge, Massachusetts, serving the MBTA Red Line subway and commuter rail with a notably deep underground platform.
  • C. Boston’s North Station (via Fitchburg Line)
    Boston’s North Station (via Fitchburg Line) is a major MBTA commuter rail terminal in Boston that serves as the downtown endpoint for the Fitchburg Line and several other northside rail routes.
  • D. MBTA Green Line E branch
    The MBTA Green Line E branch is a light rail line in Boston that runs from downtown through the Back Bay and Longwood Medical Area to Heath Street, serving major hospitals, universities, and residential neighborhoods.
  • E. MBTA Silver Hill station
    MBTA Silver Hill station is a small commuter rail stop on the Massachusetts Bay Transportation Authority’s Fitchburg Line serving the Silver Hill neighborhood of Weston, Massachusetts.
  • 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_69a25853594c8190b05ec3a586ec88bf completed Feb. 28, 2026, 2:52 a.m.
NER Named-entity recognition batch_69a260cfb4cc81909771b2d496b84726 completed Feb. 28, 2026, 3:28 a.m.
NED1 Entity disambiguation (via context triple) batch_69a38b9220f08190a94ffd00bb7425fd completed March 1, 2026, 12:42 a.m.
NEDg Description generation batch_69a38cb1d5808190b548efd55de09523 completed March 1, 2026, 12:47 a.m.
NED2 Entity disambiguation (via description) batch_69a38d10782c8190beead28963b003ab completed March 1, 2026, 12:49 a.m.
Created at: Feb. 28, 2026, 2:57 a.m.