( ( ( NEVER ( LOOK ( DIRECTLY ( AT ( THE ( SUN ! ) ) ) ) ) ) ( Looking ( at ( the Sun ) ) ) ) ( ( can ( ( ( blind you ) or ) ( cause cataracts ) ) ) . ) )
(ROOT (S (NP (NP (NNP NEVER) (NNP LOOK) (NNP DIRECTLY) (NNP AT) (NNP THE) (NNP SUN) (. !)) (VP (VBG Looking) (PP (IN at) (NP (DT the) (NNP Sun))))) (VP (MD can) (VP (VP (VB blind) (NP (PRP you))) (CC or) (VP (VB cause) (NP (NNS cataracts))))) (. .)))
NEVER LOOK DIRECTLY AT THE SUN! Looking at the Sun can blind you or cause cataracts.
(ROOT (S (S (VP (VBG Looking) (ADVP (RB directly)) (PP (IN at) (NP (DT the) (NN sun))))) (VP (MD can) (VP (VB cause) (NP (NN blindness)))) (. .)))