tries to shift the tone to a thriller 's rush 
(ROOT (S (VP (VBZ tries) (S (VP (TO to) (VP (VB shift) (NP (DT the) (NN tone)) (PP (IN to) (NP (NP (DT a) (NN thriller) (POS 's)) (NN rush)))))))))
(ROOT (S (VP (VBZ ) (S (VP (TO ) (VP (VB ) (NP (DT ) (NN )) (PP (IN ) (NP (NP (DT ) (NN ) (POS )) (NN )))))))))