Triple

T17465301
Position Surface form Disambiguated ID Type / Status
Subject Blue Water E425260 entity
Predicate usesRollingStock P5426 FINISHED
Object Amtrak Horizon coaches
Amtrak Horizon coaches are single-level intercity passenger railcars used by Amtrak primarily on shorter-distance corridor services in the United States.
E1271214 NE FINISHED

How this triple was built (4 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 Horizon coaches | Statement: [Blue Water, usesRollingStock, Amtrak Horizon coaches]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Amtrak Horizon coaches
Context triple: [Blue Water, usesRollingStock, Amtrak Horizon coaches]
  • A. Amtrak Superliner
    The Amtrak Superliner is a bi-level long-distance passenger railcar fleet used across many of Amtrak’s premier intercity routes in the United States.
  • B. Amtrak Genesis
    Amtrak Genesis is a series of streamlined diesel-electric locomotives built by GE for Amtrak’s long-distance and intercity passenger trains across the United States.
  • C. Amtrak California bi-level coaches
    Amtrak California bi-level coaches are double-decker passenger railcars used on California’s state-supported Amtrak routes, designed to provide high-capacity, comfortable intercity service with features tailored to regional corridor operations.
  • D. Amtrak Acela
    Amtrak Acela is Amtrak’s high-speed train service in the Northeast Corridor, offering its fastest and most premium intercity rail travel between major cities like Boston, New York, and Washington, D.C.
  • E. Amtrak Capitol Limited
    Amtrak Capitol Limited is a long-distance passenger train operated by Amtrak that runs overnight between Washington, D.C., and Chicago, serving major cities and scenic routes along the former Baltimore & Ohio Railroad.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg Description generation gpt-5.1
Instruction
Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Amtrak Horizon coaches
Triple: [Blue Water, usesRollingStock, Amtrak Horizon coaches]
Generated description
Amtrak Horizon coaches are single-level intercity passenger railcars used by Amtrak primarily on shorter-distance corridor services in the United States.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Amtrak Horizon coaches
Target entity description: Amtrak Horizon coaches are single-level intercity passenger railcars used by Amtrak primarily on shorter-distance corridor services in the United States.
  • A. Amtrak Superliner
    The Amtrak Superliner is a bi-level long-distance passenger railcar fleet used across many of Amtrak’s premier intercity routes in the United States.
  • B. Amtrak Genesis
    Amtrak Genesis is a series of streamlined diesel-electric locomotives built by GE for Amtrak’s long-distance and intercity passenger trains across the United States.
  • C. Amtrak California bi-level coaches
    Amtrak California bi-level coaches are double-decker passenger railcars used on California’s state-supported Amtrak routes, designed to provide high-capacity, comfortable intercity service with features tailored to regional corridor operations.
  • D. Amtrak Acela
    Amtrak Acela is Amtrak’s high-speed train service in the Northeast Corridor, offering its fastest and most premium intercity rail travel between major cities like Boston, New York, and Washington, D.C.
  • E. Amtrak Capitol Limited
    Amtrak Capitol Limited is a long-distance passenger train operated by Amtrak that runs overnight between Washington, D.C., and Chicago, serving major cities and scenic routes along the former Baltimore & Ohio Railroad.
  • 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_69d889dbc2e88190b18ea6115e819258 completed April 10, 2026, 5:25 a.m.
NER Named-entity recognition batch_69e451a6c2e08190bca9de56ee2f5136 completed April 19, 2026, 3:53 a.m.
NED1 Entity disambiguation (via context triple) batch_6a01b825ed208190997ec8868c7d6f4a completed May 11, 2026, 11:06 a.m.
NEDg Description generation batch_6a01b963291481909791d9c136a9fd69 completed May 11, 2026, 11:11 a.m.
NED2 Entity disambiguation (via description) batch_6a01ba3eeb6c8190926d2cb538fcb908 completed May 11, 2026, 11:15 a.m.
Created at: April 10, 2026, 5:47 a.m.