Triple

T16935528
Position Surface form Disambiguated ID Type / Status
Subject MBTA Zone 1 E410816 entity
Predicate governingBody P46 FINISHED
Object MBTA Board of Directors
The MBTA Board of Directors is the governing body responsible for overseeing policy, budget, and strategic decisions for the Massachusetts Bay Transportation Authority’s transit system.
E659690 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 Board of Directors | Statement: [MBTA Zone 1, governingBody, MBTA Board of Directors]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: MBTA Board of Directors
Context triple: [MBTA Zone 1, governingBody, MBTA Board of Directors]
  • A. MBTA Fiscal and Management Control Board
    The MBTA Fiscal and Management Control Board was a special oversight body created by Massachusetts to stabilize, reform, and improve the finances and operations of the Massachusetts Bay Transportation Authority.
  • B. MBTA
    The MBTA (Massachusetts Bay Transportation Authority) is the public transit agency that operates subway, bus, commuter rail, and ferry services in the Greater Boston area.
  • C. MBTA
    MBTA is a landmark U.S. federal law enacted in 1918 that protects migratory bird species by prohibiting their unauthorized capture, killing, or trade.
  • D. MBTA Office for Transportation Access
    The MBTA Office for Transportation Access is the department within Boston’s transit authority responsible for planning, coordinating, and ensuring accessible transit services for riders with disabilities and others needing accommodation.
  • E. Massachusetts Bay Transportation Trust Fund
    The Massachusetts Bay Transportation Trust Fund is a dedicated financial resource used to support and sustain public transportation services in 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: MBTA Board of Directors
Triple: [MBTA Zone 1, governingBody, MBTA Board of Directors]
Generated description
The MBTA Board of Directors is the governing body responsible for overseeing policy, budget, and strategic decisions for the Massachusetts Bay Transportation Authority’s transit system.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: MBTA Board of Directors
Target entity description: The MBTA Board of Directors is the governing body responsible for overseeing policy, budget, and strategic decisions for the Massachusetts Bay Transportation Authority’s transit system.
  • A. MBTA Fiscal and Management Control Board chosen
    The MBTA Fiscal and Management Control Board was a special oversight body created by Massachusetts to stabilize, reform, and improve the finances and operations of the Massachusetts Bay Transportation Authority.
  • B. MBTA
    The MBTA (Massachusetts Bay Transportation Authority) is the public transit agency that operates subway, bus, commuter rail, and ferry services in the Greater Boston area.
  • C. MBTA
    MBTA is a landmark U.S. federal law enacted in 1918 that protects migratory bird species by prohibiting their unauthorized capture, killing, or trade.
  • D. MBTA Office for Transportation Access
    The MBTA Office for Transportation Access is the department within Boston’s transit authority responsible for planning, coordinating, and ensuring accessible transit services for riders with disabilities and others needing accommodation.
  • E. Massachusetts Bay Transportation Trust Fund
    The Massachusetts Bay Transportation Trust Fund is a dedicated financial resource used to support and sustain public transportation services in Massachusetts.
  • F. None of above.

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_69d886c886688190967be07322597ac9 completed April 10, 2026, 5:12 a.m.
NER Named-entity recognition batch_69e3cf2a05f48190a0a8ac86985f4000 completed April 18, 2026, 6:36 p.m.
NED1 Entity disambiguation (via context triple) batch_6a00cfe2d4f48190b965b6c0a3cc0125 completed May 10, 2026, 6:35 p.m.
NEDg Description generation batch_6a00d067a6348190bdce8ae810d02741 completed May 10, 2026, 6:37 p.m.
NED2 Entity disambiguation (via description) batch_6a00d1366f4c8190b5627f67402d96a0 completed May 10, 2026, 6:40 p.m.
Created at: April 10, 2026, 5:30 a.m.