Triple

T5178065
Position Surface form Disambiguated ID Type / Status
Subject Electro-Motive Division E116848 entity
Predicate notableProduct P1448 FINISHED
Object EMD GP9 locomotive
The EMD GP9 locomotive is a widely used four-axle diesel-electric road switcher built in the 1950s that became one of North America's most successful and versatile freight and passenger locomotives.
E506012 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: EMD GP9 locomotive | Statement: [Electro-Motive Division, notableProduct, EMD GP9 locomotive]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: EMD GP9 locomotive
Context triple: [Electro-Motive Division, notableProduct, EMD GP9 locomotive]
  • A. EMD GP7 locomotive
    The EMD GP7 locomotive is a widely used four-axle diesel-electric road switcher introduced in the late 1940s that helped usher in the transition from steam to diesel power on North American railroads.
  • B. EMD FT locomotive
    The EMD FT locomotive is a pioneering diesel-electric freight locomotive introduced in the late 1930s that helped establish Electro-Motive Division as a leader in replacing steam power on American railroads.
  • C. 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.
  • D. EMD F40PH
    The EMD F40PH is a widely used four-axle diesel-electric passenger locomotive built by Electro-Motive Division, best known for its long service on North American commuter and intercity railroads.
  • E. EMD F59PHI
    The EMD F59PHI is a streamlined diesel-electric passenger locomotive widely used in North American intercity and commuter rail services.
  • 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: EMD GP9 locomotive
Triple: [Electro-Motive Division, notableProduct, EMD GP9 locomotive]
Generated description
The EMD GP9 locomotive is a widely used four-axle diesel-electric road switcher built in the 1950s that became one of North America's most successful and versatile freight and passenger locomotives.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: EMD GP9 locomotive
Target entity description: The EMD GP9 locomotive is a widely used four-axle diesel-electric road switcher built in the 1950s that became one of North America's most successful and versatile freight and passenger locomotives.
  • A. EMD GP7 locomotive
    The EMD GP7 locomotive is a widely used four-axle diesel-electric road switcher introduced in the late 1940s that helped usher in the transition from steam to diesel power on North American railroads.
  • B. EMD FT locomotive
    The EMD FT locomotive is a pioneering diesel-electric freight locomotive introduced in the late 1930s that helped establish Electro-Motive Division as a leader in replacing steam power on American railroads.
  • C. 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.
  • D. EMD F40PH
    The EMD F40PH is a widely used four-axle diesel-electric passenger locomotive built by Electro-Motive Division, best known for its long service on North American commuter and intercity railroads.
  • E. EMD F59PHI
    The EMD F59PHI is a streamlined diesel-electric passenger locomotive widely used in North American intercity and commuter rail services.
  • 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_69bd446140f08190becb93c61158f27f completed March 20, 2026, 12:58 p.m.
NER Named-entity recognition batch_69bd7976339481909ece900de22064f2 completed March 20, 2026, 4:44 p.m.
NED1 Entity disambiguation (via context triple) batch_69befe5521dc8190b2c6f03faa436529 completed March 21, 2026, 8:23 p.m.
NEDg Description generation batch_69befec4623c819081d86deebd6aeb0b completed March 21, 2026, 8:25 p.m.
NED2 Entity disambiguation (via description) batch_69beff1f7d448190b6a8d9f61c7a5b78 completed March 21, 2026, 8:27 p.m.
Created at: March 20, 2026, 1:45 p.m.