Triple

T89976
Position Surface form Disambiguated ID Type / Status
Subject MBTA bus network E1808 entity
Predicate connectsWith P37 FINISHED
Object MBTA ferry system
The MBTA ferry system is a public water transportation network serving the Greater Boston area, providing commuter and recreational boat services that complement the region’s subway, bus, and commuter rail lines.
E2866 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 ferry system | Statement: [MBTA bus network, connectsWith, MBTA ferry system]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: MBTA ferry system
Context triple: [MBTA bus network, connectsWith, MBTA ferry system]
  • A. 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.
  • B. MBTA Commuter Rail network
    The MBTA Commuter Rail network is a regional passenger rail system serving Greater Boston and surrounding communities in Massachusetts and parts of Rhode Island.
  • C. MBTA Green Line
    The MBTA Green Line is a light rail service in Boston, Massachusetts, known as one of the oldest subway lines in the United States and serving key neighborhoods, universities, and cultural destinations across the city.
  • D. MBTA Silver Line
    The MBTA Silver Line is a bus rapid transit service in Boston that operates in dedicated lanes and tunnels, linking key neighborhoods, Logan Airport, and South Station.
  • E. MBTA Orange Line
    The MBTA Orange Line is a rapid transit line in the Boston metropolitan area that runs roughly north–south, connecting neighborhoods such as Jamaica Plain, Downtown Boston, and Malden.
  • 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 ferry system
Triple: [MBTA bus network, connectsWith, MBTA ferry system]
Generated description
The MBTA ferry system is a public water transportation network serving the Greater Boston area, providing commuter and recreational boat services that complement the region’s subway, bus, and commuter rail lines.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: MBTA ferry system
Target entity description: The MBTA ferry system is a public water transportation network serving the Greater Boston area, providing commuter and recreational boat services that complement the region’s subway, bus, and commuter rail lines.
  • A. MBTA chosen
    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.
  • B. MBTA Commuter Rail network
    The MBTA Commuter Rail network is a regional passenger rail system serving Greater Boston and surrounding communities in Massachusetts and parts of Rhode Island.
  • C. MBTA Green Line
    The MBTA Green Line is a light rail service in Boston, Massachusetts, known as one of the oldest subway lines in the United States and serving key neighborhoods, universities, and cultural destinations across the city.
  • D. MBTA Silver Line
    The MBTA Silver Line is a bus rapid transit service in Boston that operates in dedicated lanes and tunnels, linking key neighborhoods, Logan Airport, and South Station.
  • E. MBTA Orange Line
    The MBTA Orange Line is a rapid transit line in the Boston metropolitan area that runs roughly north–south, connecting neighborhoods such as Jamaica Plain, Downtown Boston, and Malden.
  • 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_69a24d1a97dc819094e6c021fe9b05a7 completed Feb. 28, 2026, 2:04 a.m.
NER Named-entity recognition batch_69a383e3575c8190932dcdc25503d06e completed March 1, 2026, 12:10 a.m.
NED1 Entity disambiguation (via context triple) batch_69a3a331b0ac8190855a6c11ab538e59 completed March 1, 2026, 2:23 a.m.
NEDg Description generation batch_69a3a3a742848190ad6ac08a946d4fc0 completed March 1, 2026, 2:25 a.m.
NED2 Entity disambiguation (via description) batch_69a3a416d6048190912228f971959734 completed March 1, 2026, 2:27 a.m.
Created at: Feb. 28, 2026, 2:07 a.m.