Triple

T5127439
Position Surface form Disambiguated ID Type / Status
Subject U.S. intercity passenger rail network E115617 entity
Predicate includesServiceBrand P34842 FINISHED
Object Amtrak Northeast Corridor E220792 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: [U.S. intercity passenger rail network, includesServiceBrand, Amtrak Northeast Corridor]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Amtrak Northeast Corridor
Context triple: [U.S. intercity passenger rail network, includesServiceBrand, 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. Amtrak Northeast Corridor routes chosen
    Amtrak Northeast Corridor routes are the heavily traveled passenger rail lines connecting major cities from Boston through New York and Philadelphia to Washington, D.C., forming the busiest and most important rail corridor in the United States.
  • D. 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.
  • E. InterCity East Coast
    InterCity East Coast was a British Rail sector brand that operated long-distance high-speed passenger services on the East Coast Main Line before rail privatization.
  • 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: includesServiceBrand
Context triple: [U.S. intercity passenger rail network, includesServiceBrand, Amtrak Northeast Corridor]
  • A. serviceBrand chosen
    Indicates that one entity is the brand under which a particular service is offered or marketed by another entity.
  • B. hasBranding
    Indicates that one entity carries, displays, or is associated with the brand identity of another entity.
  • C. includesServiceFor
    Indicates that one entity’s offering or package contains or covers a particular service provided for another entity.
  • D. skipStopServiceBrand
    Indicates that a transit service intentionally bypasses a particular stop associated with a given service brand or operator.
  • E. sponsorBrandType
    Indicates the type or category of brand that is acting as a sponsor in the relationship.
  • 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_69bd444426bc819099ccd23f141e22aa completed March 20, 2026, 12:57 p.m.
NER Named-entity recognition batch_69bd7d5a23908190a24e79d1b29d6fcf completed March 20, 2026, 5:01 p.m.
NED1 Entity disambiguation (via context triple) batch_69becfd90a848190a1c78063a437cf3c completed March 21, 2026, 5:05 p.m.
PD Predicate disambiguation batch_69bd77aa68b88190a50dd736a72d2901 completed March 20, 2026, 4:36 p.m.
Created at: March 20, 2026, 1:42 p.m.