original question: Which musical instrument has the instrumentalist of [Sonny Osborne]?
answer: banjo
answer type: Musical instrument.
auxiliary information: Sonny Osborne is a bluegrass singer and five-string banjo player. A master of the style developed by Earl Scruggs, called the "Scruggs style", he is best known for his collaboration with his brother Bobby Osborne as the Osborne Brothers.
Which musical instrument does the instrumentalist [Sonny Osborne] play?