Triple

T41742
Position Surface form Disambiguated ID Type / Status
Subject Kendal Green E824 entity
Predicate lineTerminusDirection P3384 FINISHED
Object Fitchburg Line toward Boston 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 toward Boston | Statement: [Kendal Green, lineTerminusDirection, Fitchburg Line toward Boston]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Fitchburg Line toward Boston
Context triple: [Kendal Green, lineTerminusDirection, Fitchburg Line toward Boston]
  • 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. 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. Main Line (Philadelphia to Pittsburgh)
    Main Line (Philadelphia to Pittsburgh) was a major east–west rail corridor across Pennsylvania that formed the core route linking Philadelphia and Pittsburgh and became central to the state’s transportation and economic development.
  • E. Northeast Corridor
    The Northeast Corridor is the busiest passenger rail line in the United States, running primarily Amtrak and commuter trains along the urbanized spine of the East Coast between major cities such as Washington, D.C., Philadelphia, New York City, and Boston.
  • 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: lineTerminusDirection
Context triple: [Kendal Green, lineTerminusDirection, Fitchburg Line toward Boston]
  • A. terminus
    Indicates that one entity serves as the final endpoint or stopping place for another entity’s movement, route, or process.
  • B. hasWritingDirection
    Indicates the direction in which writing or text is read or written for a given script, language, or text system.
  • C. perpendicularTo
    Indicates that one entity is oriented at a right angle (90 degrees) to another entity.
  • D. branchPosition
    Indicates the relative location or placement of something along a branch.
  • E. leafMargin
    Indicates the type or pattern of the edge or border of a leaf (e.g., smooth, serrated, lobed).
  • 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_69a247a8f6c08190bac804906d62ed5a completed Feb. 28, 2026, 1:40 a.m.
NER Named-entity recognition batch_69a24db9527c8190816b6b25c88cb2f4 completed Feb. 28, 2026, 2:06 a.m.
NED1 Entity disambiguation (via context triple) batch_69a266e4c58c81909c75fea51ae16b48 completed Feb. 28, 2026, 3:54 a.m.
PD Predicate disambiguation batch_69a24ab8a8908190beec6da6694dd4c9 completed Feb. 28, 2026, 1:54 a.m.
PDg Predicate description generation batch_69a24db81c748190948560892f12c61b completed Feb. 28, 2026, 2:06 a.m.
Created at: Feb. 28, 2026, 1:46 a.m.