to sell us on this twisted love story 
(ROOT (S (VP (TO to) (VP (VB sell) (NP (PRP us)) (PP (IN on) (NP (DT this) (VBN twisted) (NN love) (NN story)))))))
(ROOT (S (VP (TO ) (VP (VB ) (NP (PRP )) (PP (IN ) (NP (DT ) (VBN ) (NN ) (NN )))))))