stupidity , incoherence and sub-sophomoric sexual banter 
(ROOT (NP (NP (NN stupidity)) (, ,) (NP (NN incoherence)) (CC and) (NP (JJ sub-sophomoric) (JJ sexual) (NN banter))))
(ROOT (NP (NP (NN )) (, ) (NP (NN )) (CC ) (NP (JJ ) (JJ ) (NN ))))