Triple

T20082644
Position Surface form Disambiguated ID Type / Status
Subject EMD FT E500040 entity
Predicate successorModel P16897 FINISHED
Object 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.
 E1412333 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 F2 | Statement: [EMD FT, successorModel, EMD F2]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: EMD F2
Context triple: [EMD FT, successorModel, EMD F2]
  • A. 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.
  • B. 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.
  • C. EMD F59PHI
    The EMD F59PHI is a streamlined diesel-electric passenger locomotive widely used in North American intercity and commuter rail services.
  • D. 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.
  • E. 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.
  • 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 F2
Triple: [EMD FT, successorModel, EMD F2]
Generated description
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.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: EMD F2
Target entity description: 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.
  • A. 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.
  • B. 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.
  • C. EMD F59PHI
    The EMD F59PHI is a streamlined diesel-electric passenger locomotive widely used in North American intercity and commuter rail services.
  • D. 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.
  • E. 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.
  • 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_69da627770948190997f486f9a2e370f completed April 11, 2026, 3:02 p.m.
NER Named-entity recognition batch_69e665588a9c8190886b693b13a215a8 completed April 20, 2026, 5:41 p.m.
NED1 Entity disambiguation (via context triple) batch_6a0827053cb4819080c2e6a6cece0dcd completed May 16, 2026, 8:12 a.m.
NEDg Description generation batch_6a082b5ad1048190a1a41acf05db77d3 completed May 16, 2026, 8:31 a.m.
NED2 Entity disambiguation (via description) batch_6a082b866fe08190a32d98620c176edc completed May 16, 2026, 8:32 a.m.
Created at: April 11, 2026, 3:41 p.m.