an incredibly irritating comedy about thoroughly vacuous people 
(ROOT (NP (NP (DT an) (ADJP (RB incredibly) (JJ irritating)) (NN comedy)) (PP (IN about) (NP (ADJP (RB thoroughly) (JJ vacuous)) (NNS people)))))
(ROOT (NP (NP (DT ) (ADJP (RB ) (JJ )) (NN )) (PP (IN ) (NP (ADJP (RB ) (JJ )) (NNS )))))