to surprise us with plot twists 
(ROOT (S (VP (TO to) (VP (VB surprise) (NP (PRP us)) (PP (IN with) (NP (NN plot) (NNS twists)))))))
(ROOT (S (VP (TO ) (VP (VB ) (NP (PRP )) (PP (IN ) (NP (NN ) (NNS )))))))