a thriller without thrills and a mystery devoid 
(ROOT (NP (NP (NP (DT a) (NN thriller)) (PP (IN without) (NP (NNS thrills)))) (CC and) (NP (DT a) (NN mystery)) (ADVP (JJ devoid))))
(ROOT (NP (NP (NP (DT ) (NN )) (PP (IN ) (NP (NNS )))) (CC ) (NP (DT ) (NN )) (ADVP (JJ ))))