( But ( ( carbohydrate counting ) ( ( can ( range ( from ( simple ( to complex ) ) ) ) ) . ) ) )
(ROOT (S (CC But) (NP (JJ carbohydrate) (NN counting)) (VP (MD can) (VP (VB range) (PP (IN from) (ADJP (JJ simple) (PP (TO to) (ADJP (JJ complex))))))) (. .)))
But carbohydrate counting can range from simple to complex.
(ROOT (S (NP (NN Simple) (NNS carbohydrates)) (VP (MD can) (VP (VB be) (VP (VBN classified) (PP (IN in) (NP (NP (NNS terms)) (PP (IN of) (NP (NN chain) (NN length)))))))) (. .)))