Triple

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).

Phrase: Rolls-Royce Dart turboprop engine | Statement: [Grumman Gulfstream I, powerplant, Rolls-Royce Dart turboprop engine]

Target entity: Rolls-Royce Dart turboprop engine
Context triple: [Grumman Gulfstream I, powerplant, Rolls-Royce Dart turboprop engine]

• A. Rolls-Royce Dart turboprop engine chosen
  The Rolls-Royce Dart turboprop engine is a pioneering post‑World War II British aircraft engine renowned for its reliability and widespread use in early regional airliners.
• B. Rolls-Royce Avon engine
  The Rolls-Royce Avon engine is a pioneering British axial-flow turbojet developed in the late 1940s that powered numerous military and civilian aircraft, including early jet airliners and fighters.
• C. Rolls-Royce Kestrel engine
  The Rolls-Royce Kestrel engine is a British liquid-cooled V-12 aircraft piston engine of the interwar period that powered numerous notable military aircraft and helped establish Rolls-Royce’s reputation in aero engine design.
• D. Rolls-Royce Nene engine
  The Rolls-Royce Nene engine is a pioneering late-1940s British centrifugal-flow turbojet whose powerful, compact design significantly advanced early jet aircraft performance and was widely exported and copied worldwide.
• E. Rolls-Royce Conway engine
  The Rolls-Royce Conway engine was the world’s first production turbofan jet engine, pioneering a more efficient generation of jet propulsion for commercial and military aircraft in the mid-20th century.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.