If you shine only red light onto a green leaf, the leaf absorbs the red light, and since there is no green light to reflect, the leaf looks gray.
(you; shine; only red light; onto a green leaf) (the leaf; absorbs; the red light) (no green light; to reflect; ) (the leaf; looks; gray)
you the leaf no green light the leaf
shine absorbs to reflect looks
only red light onto a green leaf
the red light
gray