Triple

T41599
Position Surface form Disambiguated ID Type / Status
Subject Ayer E820 entity
Predicate servedByRailLine P1293 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: [Ayer, servedByRailLine, Fitchburg Line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Fitchburg Line
Context triple: [Ayer, servedByRailLine, 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. Boston and Maine Railroad
    The Boston and Maine Railroad was a major New England railroad that operated extensive passenger and freight services across Massachusetts, New Hampshire, Maine, and surrounding states from the 19th through the mid-20th century.
  • C. 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.
  • D. Amtrak Empire Corridor
    The Amtrak Empire Corridor is a major passenger rail route in New York State that connects New York City with Albany and other upstate cities along the Hudson River and beyond.
  • E. Philadelphia, Wilmington and Baltimore Railroad
    The Philadelphia, Wilmington and Baltimore Railroad was a 19th-century rail line that formed a key segment of the main corridor linking the northeastern United States, particularly connecting Philadelphia with points south.
  • 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: servedByRailLine
Context triple: [Ayer, servedByRailLine, Fitchburg Line]
  • A. servedByRailroad
    Indicates that a location or facility is provided with transportation or service by a railroad line or company.
  • B. railwayLine
    Indicates that there is a railway line connection or route associated with or passing through the referenced entity.
  • C. servedByLine chosen
    Indicates that a transportation stop, station, or location is provided service by a specific transit line.
  • D. hasRailSystem
    Indicates that an entity possesses or is served by a rail-based transportation system.
  • E. hasRailStation
    Indicates that one entity possesses, contains, or is served by a rail station.
  • F. None of above.

Provenance (4 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_69a2981b3b508190a4cb062e4ada7891 completed Feb. 28, 2026, 7:24 a.m.
PD Predicate disambiguation batch_69a24ab8a8908190beec6da6694dd4c9 completed Feb. 28, 2026, 1:54 a.m.
Created at: Feb. 28, 2026, 1:46 a.m.