the plot has a number of holes , and at times it 's simply baffling . 
(ROOT (S (S (NP (DT the) (NN plot)) (VP (VBZ has) (NP (NP (DT a) (NN number)) (PP (IN of) (NP (NNS holes)))))) (, ,) (CC and) (S (PP (IN at) (NP (NNS times))) (NP (PRP it)) (VP (VBZ 's) (ADJP (RB simply) (JJ baffling)))) (. .)))
(ROOT (S (S (NP (DT ) (NN )) (VP (VBZ ) (NP (NP (DT ) (NN )) (PP (IN ) (NP (NNS )))))) (, ) (CC ) (S (PP (IN ) (NP (NNS ))) (NP (PRP )) (VP (VBZ ) (ADJP (RB ) (JJ )))) (. )))