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: Northrop M2-F3 | Statement: [NASA X-plane series, includes, Northrop M2-F3]

Target entity: Northrop M2-F3
Context triple: [NASA X-plane series, includes, Northrop M2-F3]

• A. Northrop M2-F2
  The Northrop M2-F2 was an experimental lifting-body research aircraft developed in the 1960s to study wingless reentry vehicle aerodynamics and landing characteristics for future spacecraft.
• B. Northrop X-21
  The Northrop X-21 was an experimental U.S. jet aircraft of the 1960s designed to test laminar-flow control technology for improved aerodynamic efficiency.
• C. Douglas X-3 Stiletto
  The Douglas X-3 Stiletto was a slender, jet-powered experimental research aircraft of the early 1950s designed to investigate sustained supersonic flight and advanced aerodynamic concepts for future high-speed aircraft.
• D. Convair XF-92
  The Convair XF-92 was an experimental American delta-wing jet interceptor prototype developed in the late 1940s that served as a pioneering testbed for high-speed delta-wing aircraft design.
• E. Northrop X-4 Bantam
  The Northrop X-4 Bantam was a late-1940s American experimental jet aircraft designed to test the stability and handling of a tailless, swept-wing configuration at transonic speeds.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"

Entity: Northrop M2-F3
Triple: [NASA X-plane series, includes, Northrop M2-F3]

The Northrop M2-F3 was a 1960s NASA lifting-body research aircraft used to study unpowered reentry and landing characteristics that informed the development of the Space Shuttle.

Target entity: Northrop M2-F3
Target entity description: The Northrop M2-F3 was a 1960s NASA lifting-body research aircraft used to study unpowered reentry and landing characteristics that informed the development of the Space Shuttle.

• A. Northrop M2-F2 chosen
  The Northrop M2-F2 was an experimental lifting-body research aircraft developed in the 1960s to study wingless reentry vehicle aerodynamics and landing characteristics for future spacecraft.
• B. Northrop X-21
  The Northrop X-21 was an experimental U.S. jet aircraft of the 1960s designed to test laminar-flow control technology for improved aerodynamic efficiency.
• C. Douglas X-3 Stiletto
  The Douglas X-3 Stiletto was a slender, jet-powered experimental research aircraft of the early 1950s designed to investigate sustained supersonic flight and advanced aerodynamic concepts for future high-speed aircraft.
• D. Convair XF-92
  The Convair XF-92 was an experimental American delta-wing jet interceptor prototype developed in the late 1940s that served as a pioneering testbed for high-speed delta-wing aircraft design.
• E. Northrop X-4 Bantam
  The Northrop X-4 Bantam was a late-1940s American experimental jet aircraft designed to test the stability and handling of a tailless, swept-wing configuration at transonic speeds.
• F. None of above.