Input (grade 13): Punch Brothers are a bluegrass band consisting of Chris Thile (mandolin), Gabe Witcher (fiddle/violin), Noam Pikelny (banjo), Chris Eldridge (guitar), and Paul Kowert (bass).
Output (grade 11): Its members include Chris Thile (mandolin), Gabe Witcher (fiddle), Chris Eldridge (guitar), Greg Garrison (bass), and Noam Pikelny (banjo).