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: D-558 research program | Statement: [Douglas D-558-2 Skyrocket, program, D-558 research program]

Target entity: D-558 research program
Context triple: [Douglas D-558-2 Skyrocket, program, D-558 research program]

• A. Douglas D-558-2 Skyrocket chosen
  The Douglas D-558-2 Skyrocket was a U.S. Navy and NACA experimental research aircraft that became one of the first aircraft to exceed Mach 2 in level flight during the early 1950s.
• B. Douglas D-558-1 Skystreak
  The Douglas D-558-1 Skystreak was an experimental U.S. Navy research jet of the late 1940s used to investigate high-subsonic and transonic flight, contributing key data to early supersonic aircraft development.
• C. X-10 Project
  The X-10 Project was an early Manhattan Project initiative that built and operated one of the first large-scale nuclear reactors at Oak Ridge, Tennessee, to produce plutonium for atomic research and weapon development.
• D. X-51A Waverider scramjet demonstrator
  The X-51A Waverider scramjet demonstrator is an experimental unmanned hypersonic aircraft designed to test air-breathing supersonic combustion ramjet propulsion at extremely high speeds.
• E. North American X-15
  The North American X-15 was a rocket-powered experimental research aircraft that set speed and altitude records in the 1960s and significantly advanced knowledge of hypersonic flight and spaceflight.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.