Triple

T20179448
Position Surface form Disambiguated ID Type / Status
Subject EMC/EMD diesel locomotives E492686 entity
Predicate notableModel P1503 FINISHED
Object EMD E8
The EMD E8 is a streamlined, diesel-electric passenger locomotive built by General Motors’ Electro-Motive Division in the late 1940s and 1950s, widely used by major North American railroads.
 E1421399 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 E8 | Statement: [EMC/EMD diesel locomotives, notableModel, EMD E8]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: EMD E8
Context triple: [EMC/EMD diesel locomotives, notableModel, EMD E8]
  • A. EMD E7
    The EMD E7 is a streamlined, cab-unit diesel-electric passenger locomotive built by General Motors’ Electro-Motive Division in the late 1940s and widely used by major U.S. railroads during the early dieselization era.
  • B. 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.
  • C. EMD GP38
    The EMD GP38 is a four-axle diesel-electric road switcher locomotive built by General Motors’ Electro-Motive Division, widely used by North American railroads for freight service.
  • D. EMD F3
    The EMD F3 is a streamlined, diesel-electric freight locomotive built by General Motors’ Electro-Motive Division in the late 1940s as part of the iconic F-unit series widely used across North American railroads.
  • E. EMD SD9
    The EMD SD9 is a six-axle diesel-electric road switcher locomotive built by General Motors’ Electro-Motive Division in the 1950s, widely used by North American railroads for heavy freight service.
  • 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 E8
Triple: [EMC/EMD diesel locomotives, notableModel, EMD E8]
Generated description
The EMD E8 is a streamlined, diesel-electric passenger locomotive built by General Motors’ Electro-Motive Division in the late 1940s and 1950s, widely used by major North American railroads.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: EMD E8
Target entity description: The EMD E8 is a streamlined, diesel-electric passenger locomotive built by General Motors’ Electro-Motive Division in the late 1940s and 1950s, widely used by major North American railroads.
  • A. EMD E7
    The EMD E7 is a streamlined, cab-unit diesel-electric passenger locomotive built by General Motors’ Electro-Motive Division in the late 1940s and widely used by major U.S. railroads during the early dieselization era.
  • B. 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.
  • C. EMD GP38
    The EMD GP38 is a four-axle diesel-electric road switcher locomotive built by General Motors’ Electro-Motive Division, widely used by North American railroads for freight service.
  • D. EMD F3
    The EMD F3 is a streamlined, diesel-electric freight locomotive built by General Motors’ Electro-Motive Division in the late 1940s as part of the iconic F-unit series widely used across North American railroads.
  • E. EMD SD9
    The EMD SD9 is a six-axle diesel-electric road switcher locomotive built by General Motors’ Electro-Motive Division in the 1950s, widely used by North American railroads for heavy freight service.
  • 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_69da6268a034819081cbd9ea5a1c9475 completed April 11, 2026, 3:02 p.m.
NER Named-entity recognition batch_69e668edf27881909820f9103e72533e completed April 20, 2026, 5:57 p.m.
NED1 Entity disambiguation (via context triple) batch_6a085518281081908dfe007d069500e8 completed May 16, 2026, 11:29 a.m.
NEDg Description generation batch_6a085618ace481909f4ee65a255fcf6c completed May 16, 2026, 11:33 a.m.
NED2 Entity disambiguation (via description) batch_6a08576602c8819084ed5a52ac5e37eb completed May 16, 2026, 11:39 a.m.
Created at: April 11, 2026, 11:36 p.m.