Triple

T22808495
Position Surface form Disambiguated ID Type / Status
Subject Green Line central subway E564602 entity
Predicate isBusiestSectionOf P66624 FINISHED
Object MBTA Green Line NE NERFINISHED

How this triple was built (3 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 Green Line | Statement: [Green Line central subway, isBusiestSectionOf, MBTA Green Line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: MBTA Green Line
Context triple: [Green Line central subway, isBusiestSectionOf, MBTA Green Line]
  • A. MBTA Green Line chosen
    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.
  • B. 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.
  • C. MBTA Blue Line
    The MBTA Blue Line is a rapid transit line in the Boston metropolitan area that runs primarily along the city’s northeastern corridor, connecting downtown Boston with East Boston, Logan Airport, and Revere.
  • D. MBTA Red Line
    The MBTA Red Line is a major rapid transit line in the Boston metropolitan area that runs through key communities including Cambridge, connecting them to downtown Boston and other parts of the region.
  • E. 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.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: isBusiestSectionOf
Context triple: [Green Line central subway, isBusiestSectionOf, MBTA Green Line]
  • A. isBusiestStationIn
    Indicates that a station has the highest level of activity (e.g., passenger or traffic volume) within a specified area or system.
  • B. isBusiestTerminalOf
    Indicates that one terminal is the busiest (i.e., handles the highest volume of activity) among all terminals associated with a given entity, such as an airport or transportation hub.
  • C. isMostHeavilyTraveledCorridorIn chosen
    Indicates that a particular route or corridor experiences the highest volume of travel or traffic within a specified area or region.
  • D. isOneOfBusiestStopsOn
    Indicates that a stop ranks among the most heavily used or frequently served stops on a given route or line.
  • E. isBusiestInSystem
    Indicates that an entity has the highest level of activity or load compared to all other entities within the same system.
  • F. None of above.

Provenance (3 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_69e245823f4c8190ade442cdcc2c224a completed April 17, 2026, 2:36 p.m.
NER Named-entity recognition batch_69f17d5e0b088190ad0b9cc0d5aa1d96 completed April 29, 2026, 3:39 a.m.
PD Predicate disambiguation batch_69eed2cb30f481909566369f515f6eff completed April 27, 2026, 3:06 a.m.
Created at: April 17, 2026, 3:32 p.m.