Triple

T20179446
Position Surface form Disambiguated ID Type / Status
Subject EMC/EMD diesel locomotives E492686 entity
Predicate notableModel P1503 FINISHED
Object 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.
E1417788 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 F7 | Statement: [EMC/EMD diesel locomotives, notableModel, EMD F7]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: EMD F7
Context triple: [EMC/EMD diesel locomotives, notableModel, EMD F7]
  • A. 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.
  • 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 F125
    The EMD F125 is a modern diesel-electric passenger locomotive built by Electro-Motive Diesel for commuter rail service, featuring improved emissions performance, higher power output, and updated safety and control systems compared to its predecessors.
  • D. EMD F59PHI
    The EMD F59PHI is a streamlined diesel-electric passenger locomotive widely used in North American intercity and commuter rail services.
  • 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 F7
Triple: [EMC/EMD diesel locomotives, notableModel, EMD F7]
Generated description
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.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: EMD F7
Target entity description: 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.
  • A. 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.
  • 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 F125
    The EMD F125 is a modern diesel-electric passenger locomotive built by Electro-Motive Diesel for commuter rail service, featuring improved emissions performance, higher power output, and updated safety and control systems compared to its predecessors.
  • D. EMD F59PHI
    The EMD F59PHI is a streamlined diesel-electric passenger locomotive widely used in North American intercity and commuter rail services.
  • 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_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_6a0843e0c99c8190972a7120b8beaa87 completed May 16, 2026, 10:16 a.m.
NEDg Description generation batch_6a0844b2ef688190908b9ad5cf554907 completed May 16, 2026, 10:19 a.m.
NED2 Entity disambiguation (via description) batch_6a0845e473088190a9a87fc83ece73d5 completed May 16, 2026, 10:24 a.m.
Created at: April 11, 2026, 11:36 p.m.