only so much baked cardboard i need to chew 
(ROOT (NP (NP (ADJP (RB only) (RB so) (JJ much)) (VBN baked) (NN cardboard)) (SBAR (S (NP (PRP i)) (VP (VBP need) (S (VP (TO to) (VP (VB chew)))))))))
(ROOT (NP (NP (ADJP (RB ) (RB ) (JJ )) (VBN ) (NN )) (SBAR (S (NP (PRP )) (VP (VBP ) (S (VP (TO ) (VP (VB )))))))))