A plucked guitar string, a vibrating tuning fork, our voices, animal calls are all due to some physical objects set into vibrations.
(A plucked guitar string, a vibrating tuning fork, our voices, animal calls; are; due to some physical objects) (some physical objects; set; into vibrations)
A plucked guitar string, a vibrating tuning fork, our voices, animal calls some physical objects
are set
due to some physical objects
into vibrations