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: Boeing B-50 Superfortress | Statement: [RB-50, basedOn, Boeing B-50 Superfortress]

Target entity: Boeing B-50 Superfortress
Context triple: [RB-50, basedOn, Boeing B-50 Superfortress]

• A. 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.
• B. 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.
• C. B-47 Stratojet
  The B-47 Stratojet was a pioneering American jet-powered strategic bomber of the early Cold War era, notable for its swept-wing design and role in nuclear deterrence.
• D. 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.
• E. Martin B‑10
  The Martin B‑10 was a pioneering American all-metal monoplane bomber of the 1930s that introduced many modern features such as enclosed cockpits, internal bomb bays, and retractable landing gear.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.