Triple

T7365
Position Surface form Disambiguated ID Type / Status
Subject Waverley station E146 entity
Predicate servesLine P839 FINISHED
Object Fitchburg Line E65 NE FINISHED

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: Fitchburg Line | Statement: [Waverley station, servesLine, Fitchburg Line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Fitchburg Line
Context triple: [Waverley station, servesLine, Fitchburg Line]
  • A. MBTA Fitchburg Line chosen
    The MBTA Fitchburg Line is a commuter rail route in the Greater Boston area that runs between Boston and Fitchburg, serving numerous suburban communities along the way.
  • B. 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.
  • C. Portland Streetcar
    Portland Streetcar is a modern urban streetcar transit system serving central Portland, Oregon, connecting key neighborhoods, employment centers, and educational institutions.
  • D. Virginia Railway Express
    Virginia Railway Express is a commuter rail service that connects Northern Virginia suburbs with Washington, D.C., primarily serving daily work commuters.
  • E. MBTA bus network
    The MBTA bus network is the system of public bus routes serving Cambridge and the greater Boston area as part of the Massachusetts Bay Transportation Authority’s regional transit services.
  • 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: servesLine
Context triple: [Waverley station, servesLine, Fitchburg Line]
  • A. operatesBy
    Indicates that an entity performs its function, action, or process through the use or application of another entity (e.g., a method, mechanism, or principle).
  • B. produces
    Indicates that one entity creates, generates, or yields another entity as a result or output.
  • C. drivesOn
    Indicates that an entity uses or travels along a particular route, surface, or roadway as its path of movement.
  • D. areaServed
    Indicates the geographic region or jurisdiction within which a service, organization, or activity is provided or applicable.
  • E. staffIncluded
    Indicates that staff members are included or provided as part of the associated entity, service, or arrangement.
  • 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_69a23bb612708190b09f25385e4b63d1 completed Feb. 28, 2026, 12:49 a.m.
NER Named-entity recognition batch_69a241a55ac081909e95b71c97db8140 completed Feb. 28, 2026, 1:15 a.m.
NED1 Entity disambiguation (via context triple) batch_69a24e52b304819094ffde051ec9bde3 completed Feb. 28, 2026, 2:09 a.m.
PD Predicate disambiguation batch_69a23fe1cf38819080ea56c40bf2632e completed Feb. 28, 2026, 1:07 a.m.
PDg Predicate description generation batch_69a241a4a0f481908de66b64c6262fcd completed Feb. 28, 2026, 1:15 a.m.
Created at: Feb. 28, 2026, 12:54 a.m.