Triple

T20179449
Position Surface form Disambiguated ID Type / Status
Subject EMC/EMD diesel locomotives E492686 entity
Predicate notableModel P1503 FINISHED
Object EMD GP7
The EMD GP7 is a four-axle road switcher diesel-electric locomotive introduced in the late 1940s that became one of Electro-Motive Division’s most successful and widely used early road switcher designs in North America.
 E1421730 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 GP7 | Statement: [EMC/EMD diesel locomotives, notableModel, EMD GP7]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: EMD GP7
Context triple: [EMC/EMD diesel locomotives, notableModel, EMD GP7]
  • A. 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.
  • B. 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.
  • C. 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.
  • 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 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.
  • 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 GP7
Triple: [EMC/EMD diesel locomotives, notableModel, EMD GP7]
Generated description
The EMD GP7 is a four-axle road switcher diesel-electric locomotive introduced in the late 1940s that became one of Electro-Motive Division’s most successful and widely used early road switcher designs in North America.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: EMD GP7
Target entity description: The EMD GP7 is a four-axle road switcher diesel-electric locomotive introduced in the late 1940s that became one of Electro-Motive Division’s most successful and widely used early road switcher designs in North America.
  • A. 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.
  • B. 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.
  • C. 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.
  • 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 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.
  • 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_6a085a117d288190b0d55c63881c93dd completed May 16, 2026, 11:50 a.m.
NEDg Description generation batch_6a085ad8bfd08190ac31b66cdc0bc6aa completed May 16, 2026, 11:54 a.m.
NED2 Entity disambiguation (via description) batch_6a085b756f44819090892ab35a98fcc8 completed May 16, 2026, 11:56 a.m.
Created at: April 11, 2026, 11:36 p.m.