(Standing waves are waves that appear stationary like the vibrating string of a plucked guitar.)
(Standing waves; are; waves that appear stationary like the vibrating string of a plucked guitar) (waves; appear; stationary like the vibrating string of a plucked guitar)
Standing waves waves
are appear
waves that appear stationary like the vibrating string of a plucked guitar
stationary like the vibrating string of a plucked guitar