is so pat it makes your teeth hurt . 
(ROOT (S (VP (VBZ is) (ADJP (RB so) (NN pat) (SBAR (S (NP (PRP it)) (VP (VBZ makes) (S (NP (PRP$ your) (NNS teeth)) (VP (VBN hurt)))))))) (. .)))
(ROOT (S (VP (VBZ ) (ADJP (RB ) (NN ) (SBAR (S (NP (PRP )) (VP (VBZ ) (S (NP (PRP$ ) (NNS )) (VP (VBN )))))))) (. )))