Triple

T20179447
Position Surface form Disambiguated ID Type / Status
Subject EMC/EMD diesel locomotives E492686 entity
Predicate notableModel P1503 FINISHED
Object EMD E7 — NE NERFINISHED

How this triple was built (3 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 E7 | Statement: [EMC/EMD diesel locomotives, notableModel, EMD E7]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: EMD E7
Context triple: [EMC/EMD diesel locomotives, notableModel, EMD E7]
  • A. EMD F7
    The EMD F7 is a widely used American diesel-electric locomotive from the mid-20th century, known for its streamlined “F-unit” design and extensive service in both freight and passenger operations.
  • B. 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.
  • C. 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.
  • D. EMD F2
    The EMD F2 is a four-axle, 1,500-horsepower diesel-electric freight locomotive built by General Motors’ Electro-Motive Division in the mid-1940s as an evolutionary refinement of its pioneering FT cab unit.
  • 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.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: EMD E7
Target entity description: 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.
  • A. EMD F7
    The EMD F7 is a widely used American diesel-electric locomotive from the mid-20th century, known for its streamlined “F-unit” design and extensive service in both freight and passenger operations.
  • B. 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.
  • C. 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.
  • D. EMD F2
    The EMD F2 is a four-axle, 1,500-horsepower diesel-electric freight locomotive built by General Motors’ Electro-Motive Division in the mid-1940s as an evolutionary refinement of its pioneering FT cab unit.
  • 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 (2 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.
Created at: April 11, 2026, 11:36 p.m.