they can and will turn on a dime from oddly humorous to tediously sentimental . 
(ROOT (S (NP (PRP they)) (VP (MD can) (CC and) (MD will) (VP (VB turn) (PP (RP on) (NP (DT a) (NN dime))) (PP (IN from) (ADJP (RB oddly) (JJ humorous))) (PP (IN to) (ADJP (RB tediously) (JJ sentimental))))) (. .)))
(ROOT (S (NP (PRP )) (VP (MD ) (CC ) (MD ) (VP (VB ) (PP (RP ) (NP (DT ) (NN ))) (PP (IN ) (ADJP (RB ) (JJ ))) (PP (IN ) (ADJP (RB ) (JJ ))))) (. )))