In an electric guitar, the electrical energy is picked up by the the so-called 'pick-ups' and the electric signal is amplified by an external sound amplification device ('amp' for short) and released as sound energy 
(the electrical energy; is picked up; by the the so-called 'pick-ups; L:In an electric guitar) (the electrical energy; released; as sound energy)
the electrical energy the electrical energy
is picked up released
by the the so-called 'pick-ups L:In an electric guitar
as sound energy