throws in enough clever and unexpected twists to make the formula feel fresh . 
(ROOT (S (VP (VBZ throws) (PRT (RP in)) (NP (JJ enough) (ADJP (JJ clever) (CC and) (JJ unexpected)) (NNS twists)) (S (VP (TO to) (VP (VB make) (S (NP (DT the) (NN formula)) (VP (VB feel) (ADJP (JJ fresh)))))))) (. .)))
(ROOT (S (VP (VBZ ) (PRT (RP )) (NP (JJ ) (ADJP (JJ ) (CC ) (JJ )) (NNS )) (S (VP (TO ) (VP (VB ) (S (NP (DT ) (NN )) (VP (VB ) (ADJP (JJ )))))))) (. )))