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: XB-70 | Statement: [North American XB-70 Valkyrie, aircraftDesignation, XB-70]

Target entity: XB-70
Context triple: [North American XB-70 Valkyrie, aircraftDesignation, XB-70]

• A. North American XB-70 Valkyrie chosen
  The North American XB-70 Valkyrie was an experimental 1960s U.S. Air Force supersonic strategic bomber prototype designed to fly at Mach 3+ and high altitudes, notable for its advanced aerodynamics and distinctive canard-delta configuration.
• B. Convair B-58 Hustler
  The Convair B-58 Hustler was a Cold War-era United States Air Force supersonic jet bomber, notable as the first operational bomber capable of sustained Mach 2 flight.
• C. SR-71 Blackbird
  The SR-71 Blackbird is a long-range, high-altitude, Mach 3+ strategic reconnaissance aircraft developed by Lockheed’s Skunk Works and renowned as one of the fastest air-breathing manned aircraft ever built.
• D. Bell V-280 Valor
  The Bell V-280 Valor is a next-generation tiltrotor aircraft designed for the U.S. Army’s Future Vertical Lift program, offering high-speed, long-range, and improved agility over traditional helicopters.
• E. Lockheed A-12
  The Lockheed A-12 was a high-altitude, Mach 3+ reconnaissance aircraft developed in the early 1960s for the CIA as part of the Oxcart program, serving as the secret predecessor to the SR-71 Blackbird.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.