a slow-moving police-procedural thriller 
(ROOT (NP (DT a) (ADJP (JJ slow) (HYPH -) (VBG moving)) (NML (NN police) (HYPH -) (JJ procedural)) (NN thriller)))
(ROOT (NP (DT ) (ADJP (JJ ) (HYPH ) (VBG )) (NML (NN ) (HYPH ) (JJ )) (NN )))