Triple

T1932857
Position Surface form Disambiguated ID Type / Status
Subject Amtrak Silver Service E40984 entity
Predicate operatesOnCorridor P2566 FINISHED
Object Northeast Corridor E2775 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: Northeast Corridor | Statement: [Amtrak Silver Service, operatesOnCorridor, Northeast Corridor]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Northeast Corridor
Context triple: [Amtrak Silver Service, operatesOnCorridor, Northeast Corridor]
  • A. Northeast Corridor chosen
    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.
  • B. 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.
  • C. Baltimore–Harrisburg corridor
    The Baltimore–Harrisburg corridor is a key Mid-Atlantic transportation and economic region linking Baltimore, Maryland with Harrisburg, Pennsylvania.
  • D. Trans-Hudson rail network
    The Trans-Hudson rail network is a rapid transit system that connects New Jersey with Manhattan via tunnels under the Hudson River, primarily serving commuters traveling between the two states.
  • E. Boston–Portland main line
    The Boston–Portland main line is a historic New England railroad corridor connecting Boston, Massachusetts, with Portland, Maine, that has long served as a key passenger and freight route along the region’s coast.
  • 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: operatesOnCorridor
Context triple: [Amtrak Silver Service, operatesOnCorridor, Northeast Corridor]
  • A. hasCorridor
    Indicates that one entity includes, is connected by, or provides access through a corridor to another entity.
  • B. corridorType
    Indicates the specific kind or classification of a corridor associated with an entity or location.
  • C. hasServiceOnCorridor chosen
    Indicates that a service operates along, or is provided on, a specific corridor or route.
  • D. numberOfCorridors
    Indicates the total count of corridors associated with or contained within a given entity or structure.
  • E. lengthOfCorridors
    Indicates the measured extent or distance of corridors within a given space or structure.
  • 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_69a8864711648190b07bed24ed76258e completed March 4, 2026, 7:21 p.m.
NER Named-entity recognition batch_69abb299f3c48190a5021d320ded4405 completed March 7, 2026, 5:07 a.m.
NED1 Entity disambiguation (via context triple) batch_69adf3f16d0c8190967862b68e6cc373 completed March 8, 2026, 10:10 p.m.
PD Predicate disambiguation batch_69abafeec6f881909d47acb966683279 completed March 7, 2026, 4:56 a.m.
Created at: March 4, 2026, 7:35 p.m.