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: Harvard Mk IV | Statement: [North American T-6 Texan, notableVariant, Harvard Mk IV]

Target entity: Harvard Mk IV
Context triple: [North American T-6 Texan, notableVariant, Harvard Mk IV]

• A. CT-156 Harvard II
  The CT-156 Harvard II is a turboprop military trainer aircraft used by the Royal Canadian Air Force for pilot training and skill development.
• B. Cornell Mk I
  The Cornell Mk I was a Canadian military trainer aircraft variant used by the Royal Canadian Air Force during World War II for pilot instruction.
• C. Bristol Perseus
  The Bristol Perseus was a British nine-cylinder air-cooled radial aircraft engine of the 1930s that pioneered sleeve-valve technology and powered several military and civil aircraft.
• D. Northrop Alpha
  Northrop Alpha was an early all-metal, single-engine monoplane airliner and mailplane of the early 1930s that helped pioneer modern stressed-skin aircraft design.
• E. Northrop Gamma
  The Northrop Gamma was a pioneering American all-metal monoplane of the 1930s used primarily as a mailplane and research aircraft, notable for its advanced aerodynamic design and role in high-speed flight development.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: Harvard Mk IV
Target entity description: The Harvard Mk IV is a Canadian and Commonwealth designation for a later variant of the North American T-6 Texan advanced trainer aircraft used extensively for pilot instruction in the mid-20th century.

• A. CT-156 Harvard II
  The CT-156 Harvard II is a turboprop military trainer aircraft used by the Royal Canadian Air Force for pilot training and skill development.
• B. Cornell Mk I
  The Cornell Mk I was a Canadian military trainer aircraft variant used by the Royal Canadian Air Force during World War II for pilot instruction.
• C. Bristol Perseus
  The Bristol Perseus was a British nine-cylinder air-cooled radial aircraft engine of the 1930s that pioneered sleeve-valve technology and powered several military and civil aircraft.
• D. Northrop Alpha
  Northrop Alpha was an early all-metal, single-engine monoplane airliner and mailplane of the early 1930s that helped pioneer modern stressed-skin aircraft design.
• E. Northrop Gamma
  The Northrop Gamma was a pioneering American all-metal monoplane of the 1930s used primarily as a mailplane and research aircraft, notable for its advanced aerodynamic design and role in high-speed flight development.
• F. None of above. chosen