Triple

T15976206
Position Surface form Disambiguated ID Type / Status
Subject Norfolk and Western Class A E387453 entity
Predicate relatedClass P25008 FINISHED
Object Norfolk and Western Y class
The Norfolk and Western Y class was a series of powerful articulated steam locomotives designed primarily for heavy coal and freight service on the Norfolk and Western Railway.
E1187573 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: Norfolk and Western Y class | Statement: [Norfolk and Western Class A, relatedClass, Norfolk and Western Y class]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Norfolk and Western Y class
Context triple: [Norfolk and Western Class A, relatedClass, Norfolk and Western Y class]
  • A. Norfolk and Western Class J
    The Norfolk and Western Class J was a famed series of streamlined 4-8-4 steam locomotives renowned for their power, efficiency, and elegant design, used primarily for high-speed passenger service in the mid-20th century United States.
  • B. Norfolk and Western Class A
    Norfolk and Western Class A was a series of powerful articulated steam locomotives built for high-speed freight service on the Norfolk and Western Railway in the mid-20th century.
  • C. EMD GP40
    The EMD GP40 is a four-axle diesel-electric locomotive built by Electro-Motive Division in the late 1960s and early 1970s, widely used by North American railroads for freight service.
  • D. EMD GP40-2H
    The EMD GP40-2H is a rebuilt, passenger-equipped variant of the EMD GP40-2 diesel-electric locomotive, featuring head-end power for commuter rail service.
  • E. EMD GP38-2
    The EMD GP38-2 is a widely used four-axle diesel-electric road switcher locomotive built by General Motors’ Electro-Motive Division, known for its reliability and versatility in freight service across North America.
  • 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: Norfolk and Western Y class
Triple: [Norfolk and Western Class A, relatedClass, Norfolk and Western Y class]
Generated description
The Norfolk and Western Y class was a series of powerful articulated steam locomotives designed primarily for heavy coal and freight service on the Norfolk and Western Railway.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Norfolk and Western Y class
Target entity description: The Norfolk and Western Y class was a series of powerful articulated steam locomotives designed primarily for heavy coal and freight service on the Norfolk and Western Railway.
  • A. Norfolk and Western Class J
    The Norfolk and Western Class J was a famed series of streamlined 4-8-4 steam locomotives renowned for their power, efficiency, and elegant design, used primarily for high-speed passenger service in the mid-20th century United States.
  • B. Norfolk and Western Class A
    Norfolk and Western Class A was a series of powerful articulated steam locomotives built for high-speed freight service on the Norfolk and Western Railway in the mid-20th century.
  • C. EMD GP40
    The EMD GP40 is a four-axle diesel-electric locomotive built by Electro-Motive Division in the late 1960s and early 1970s, widely used by North American railroads for freight service.
  • D. EMD GP40-2H
    The EMD GP40-2H is a rebuilt, passenger-equipped variant of the EMD GP40-2 diesel-electric locomotive, featuring head-end power for commuter rail service.
  • E. EMD GP38-2
    The EMD GP38-2 is a widely used four-axle diesel-electric road switcher locomotive built by General Motors’ Electro-Motive Division, known for its reliability and versatility in freight service across North America.
  • 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_69d86da94ccc819083d187f5dc6a123e completed April 10, 2026, 3:25 a.m.
NER Named-entity recognition batch_69e1575166d081909c5275c235c8ce0f completed April 16, 2026, 9:40 p.m.
NED1 Entity disambiguation (via context triple) batch_69ffc3c76c988190a2f2bb4b6ac5ef25 completed May 9, 2026, 11:31 p.m.
NEDg Description generation batch_69ffc49bfa088190a6291f560ca9bdb5 completed May 9, 2026, 11:34 p.m.
NED2 Entity disambiguation (via description) batch_69ffc538a5f0819097ea09f57d3cae35 completed May 9, 2026, 11:37 p.m.
Created at: April 10, 2026, 4:54 a.m.