Great mistake to say too much.
( Great ( ( mistake ( to ( say ( too much ) ) ) ) . ) )
(ROOT (S (NP (NNP Great)) (VP (VBZ mistake) (S (VP (TO to) (VP (VB say) (ADVP (RB too) (RB much)))))) (. .)))
It screwed things up when they said too much.
( It ( ( ( screwed ( things up ) ) ( when ( they ( said ( too much ) ) ) ) ) . ) )
(ROOT (S (NP (PRP It)) (VP (VBN screwed) (ADVP (NP (NNS things)) (RB up)) (SBAR (WHADVP (WRB when)) (S (NP (PRP they)) (VP (VBD said) (ADJP (RB too) (JJ much)))))) (. .)))