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: B-50 Superfortress program | Statement: [KB-50, originProgram, B-50 Superfortress program]

Target entity: B-50 Superfortress program
Context triple: [KB-50, originProgram, B-50 Superfortress program]

• A. Lockheed Constellation program
  The Lockheed Constellation program was a series of advanced, four‑engine propeller-driven airliners and military transports developed in the 1940s that became iconic for their distinctive triple-tail design and long-range performance.
• B. B-50 Superfortress chosen
  The B-50 Superfortress was a post–World War II American strategic bomber developed from the B-29 with more powerful engines and structural improvements for long-range nuclear and reconnaissance missions.
• C. B-29 Superfortress
  The B-29 Superfortress was a long-range, four-engine heavy bomber developed by the United States during World War II, notable for its advanced technology and its role in strategic bombing campaigns over Japan.
• D. Convair B-36 Peacemaker
  The Convair B-36 Peacemaker was a massive American intercontinental strategic bomber of the early Cold War era, notable for its unprecedented range and role as a key component of the United States' nuclear deterrent before the advent of jet-powered bombers.
• E. Lockheed C-5 Galaxy program
  The Lockheed C-5 Galaxy program is a U.S. Air Force strategic airlifter development and acquisition initiative that produced one of the world’s largest military transport aircraft for long-range, heavy cargo missions.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.