Triple

T17287416
Position Surface form Disambiguated ID Type / Status
Subject MPI MP36PH-3C E419693 entity
Predicate family P566 FINISHED
Object MPXpress locomotive family
The MPXpress locomotive family is a series of modern, diesel-electric passenger locomotives widely used by North American commuter rail agencies for their reliability, power, and compliance with contemporary emissions and safety standards.
E1262201 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: MPXpress locomotive family | Statement: [MPI MP36PH-3C, family, MPXpress locomotive family]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: MPXpress locomotive family
Context triple: [MPI MP36PH-3C, family, MPXpress locomotive family]
  • A. GE Dash 7 series locomotives
    GE Dash 7 series locomotives are a family of diesel-electric freight and passenger locomotives built by General Electric in the late 1970s and 1980s, known for their improved performance and reliability over the earlier Universal Series.
  • B. EMD SD70 series locomotives
    The EMD SD70 series locomotives are a family of high-horsepower, six-axle diesel-electric freight locomotives widely used by North American railroads since the 1990s for heavy mainline service.
  • C. EMD DM30AC locomotives
    EMD DM30AC locomotives are dual-mode diesel-electric locomotives built for the Long Island Rail Road, capable of operating in both diesel and third-rail electric modes to serve non-electrified and electrified territory.
  • D. GE Dash 8 series locomotives
    GE Dash 8 series locomotives are a family of four- and six-axle diesel-electric freight and passenger locomotives built by General Electric in the 1980s and 1990s, known for their angular “Dash 8” carbody styling and widespread use by North American railroads.
  • E. GE Dash 9 series locomotives
    GE Dash 9 series locomotives are high-horsepower diesel-electric freight locomotives built by General Electric in the 1990s, widely used by North American railroads for heavy mainline 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: MPXpress locomotive family
Triple: [MPI MP36PH-3C, family, MPXpress locomotive family]
Generated description
The MPXpress locomotive family is a series of modern, diesel-electric passenger locomotives widely used by North American commuter rail agencies for their reliability, power, and compliance with contemporary emissions and safety standards.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: MPXpress locomotive family
Target entity description: The MPXpress locomotive family is a series of modern, diesel-electric passenger locomotives widely used by North American commuter rail agencies for their reliability, power, and compliance with contemporary emissions and safety standards.
  • A. GE Dash 7 series locomotives
    GE Dash 7 series locomotives are a family of diesel-electric freight and passenger locomotives built by General Electric in the late 1970s and 1980s, known for their improved performance and reliability over the earlier Universal Series.
  • B. EMD SD70 series locomotives
    The EMD SD70 series locomotives are a family of high-horsepower, six-axle diesel-electric freight locomotives widely used by North American railroads since the 1990s for heavy mainline service.
  • C. EMD DM30AC locomotives
    EMD DM30AC locomotives are dual-mode diesel-electric locomotives built for the Long Island Rail Road, capable of operating in both diesel and third-rail electric modes to serve non-electrified and electrified territory.
  • D. GE Dash 8 series locomotives
    GE Dash 8 series locomotives are a family of four- and six-axle diesel-electric freight and passenger locomotives built by General Electric in the 1980s and 1990s, known for their angular “Dash 8” carbody styling and widespread use by North American railroads.
  • E. GE Dash 9 series locomotives
    GE Dash 9 series locomotives are high-horsepower diesel-electric freight locomotives built by General Electric in the 1990s, widely used by North American railroads for heavy mainline 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_69d886db32608190a61e18862c5a8af6 completed April 10, 2026, 5:12 a.m.
NER Named-entity recognition batch_69e43780fad88190b82193c8335e2f11 completed April 19, 2026, 2:01 a.m.
NED1 Entity disambiguation (via context triple) batch_6a0180d49ff08190bd73245adfb86760 completed May 11, 2026, 7:10 a.m.
NEDg Description generation batch_6a018419f5e0819084ad8dcabd03b6e5 completed May 11, 2026, 7:24 a.m.
NED2 Entity disambiguation (via description) batch_6a0187c53c088190ab657523e97e2f70 completed May 11, 2026, 7:39 a.m.
Created at: April 10, 2026, 5:40 a.m.