whole subplots have no explanation or even plot relevance 
(ROOT (S (NP (JJ whole) (NNS subplots)) (VP (VBP have) (NP (NP (DT no) (NN explanation)) (CC or) (ADVP (RB even)) (NP (NN plot) (NN relevance))))))
(ROOT (S (NP (JJ ) (NNS )) (VP (VBP ) (NP (NP (DT ) (NN )) (CC ) (ADVP (RB )) (NP (NN ) (NN ))))))