Triple

T6725058
Position Surface form Disambiguated ID Type / Status
Subject GO Transit Richmond Hill line E153495 entity
Predicate rollingStock P1305 FINISHED
Object EMD F59PH locomotive
The EMD F59PH locomotive is a four-axle diesel-electric passenger locomotive built by Electro-Motive Division in the late 1980s and 1990s, widely used by North American commuter rail agencies.
E616080 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 F59PH locomotive | Statement: [GO Transit Richmond Hill line, rollingStock, EMD F59PH locomotive]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: EMD F59PH locomotive
Context triple: [GO Transit Richmond Hill line, rollingStock, EMD F59PH locomotive]
  • A. EMD F59PHI
    The EMD F59PHI is a streamlined diesel-electric passenger locomotive widely used in North American intercity and commuter rail services.
  • B. 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.
  • C. 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.
  • D. 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.
  • E. 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.
  • 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 F59PH locomotive
Triple: [GO Transit Richmond Hill line, rollingStock, EMD F59PH locomotive]
Generated description
The EMD F59PH locomotive is a four-axle diesel-electric passenger locomotive built by Electro-Motive Division in the late 1980s and 1990s, widely used by North American commuter rail agencies.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: EMD F59PH locomotive
Target entity description: The EMD F59PH locomotive is a four-axle diesel-electric passenger locomotive built by Electro-Motive Division in the late 1980s and 1990s, widely used by North American commuter rail agencies.
  • A. EMD F59PHI
    The EMD F59PHI is a streamlined diesel-electric passenger locomotive widely used in North American intercity and commuter rail services.
  • B. 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.
  • C. 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.
  • D. 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.
  • E. 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.
  • 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_69c6880afb988190ad88011b48ecfcba completed March 27, 2026, 1:37 p.m.
NER Named-entity recognition batch_69c6d14fb1a8819083287ca8bb576bba completed March 27, 2026, 6:49 p.m.
NED1 Entity disambiguation (via context triple) batch_69c70afcbe308190909fe8f34ca8e5e2 completed March 27, 2026, 10:55 p.m.
NEDg Description generation batch_69c70cc64b208190b01c596f704a6bfb completed March 27, 2026, 11:03 p.m.
NED2 Entity disambiguation (via description) batch_69c70d1b8c848190b2235f461df135ed completed March 27, 2026, 11:04 p.m.
Created at: March 27, 2026, 2:08 p.m.