a clever thriller with enough unexpected twists to keep our interest 
(ROOT (NP (NP (DT a) (JJ clever) (NN thriller)) (PP (IN with) (NP (NP (JJ enough) (JJ unexpected) (NNS twists)) (SBAR (S (VP (TO to) (VP (VB keep) (NP (PRP$ our) (NN interest))))))))))
(ROOT (NP (NP (DT ) (JJ ) (NN )) (PP (IN ) (NP (NP (JJ ) (JJ ) (NNS )) (SBAR (S (VP (TO ) (VP (VB ) (NP (PRP$ ) (NN ))))))))))