Triple

T508770
Position Surface form Disambiguated ID Type / Status
Subject Philadelphia, Wilmington and Baltimore Railroad E10558 entity
Predicate routeNowUsedBy P5619 FINISHED
Object Amtrak 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: Amtrak Northeast Corridor | Statement: [Philadelphia, Wilmington and Baltimore Railroad, routeNowUsedBy, Amtrak Northeast Corridor]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Amtrak Northeast Corridor
Context triple: [Philadelphia, Wilmington and Baltimore Railroad, routeNowUsedBy, Amtrak Northeast Corridor]
  • A. 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.
  • B. Amtrak Northeast Regional
    Amtrak Northeast Regional is a passenger rail service that provides frequent intercity connections between major cities in the northeastern United States, including Boston, New York, Philadelphia, and Washington, D.C.
  • C. 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.
  • D. Amtrak Capitol Corridor
    Amtrak Capitol Corridor is a passenger rail service in Northern California that connects Sacramento, the San Francisco Bay Area, and San Jose with frequent, commuter-oriented trains.
  • E. Amtrak
    Amtrak is the United States’ national passenger railroad service, operating intercity and long-distance trains across much of the country.
  • 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: routeNowUsedBy
Context triple: [Philadelphia, Wilmington and Baltimore Railroad, routeNowUsedBy, Amtrak Northeast Corridor]
  • A. routeVia
    Indicates that a connection, path, or communication between two points is established or carried out through an intermediate location, node, or channel.
  • B. route chosen
    Indicates that one entity serves as a path or course used to travel or move between locations associated with another entity.
  • C. routingBasis
    Indicates the principle or criterion used to determine how something is directed, routed, or assigned among possible paths or destinations.
  • D. followsRouteOf
    Indicates that one entity travels along the same path or route that another entity takes or has taken.
  • E. navigatedBy
    Indicates that the movement, direction, or operation of something is controlled, guided, or steered by a specified agent.
  • 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_69a2e848adf881908e5e04f7af030093 completed Feb. 28, 2026, 1:06 p.m.
NER Named-entity recognition batch_69a2f162f3888190b057ad04e40a30e2 completed Feb. 28, 2026, 1:45 p.m.
NED1 Entity disambiguation (via context triple) batch_69a4b23bf69481908db3a0f3de8c2bf1 completed March 1, 2026, 9:40 p.m.
PD Predicate disambiguation batch_69a2edfe236481909901cc7d4281b33c completed Feb. 28, 2026, 1:30 p.m.
Created at: Feb. 28, 2026, 1:12 p.m.