 It can't hurt you.
( It ( ( ( ca n't ) ( hurt you ) ) . ) )
(ROOT (S (NP (PRP It)) (VP (MD ca) (RB n't) (VP (VB hurt) (NP (PRP you)))) (. .)))
Watch out, that thing is dangerous!
( ( Watch out ) ( , ( ( that thing ) ( ( is dangerous ) ! ) ) ) )
(ROOT (S (S (VP (VB Watch) (PRT (RP out)))) (, ,) (NP (DT that) (NN thing)) (VP (VBZ is) (ADJP (JJ dangerous))) (. !)))