loses its sense of humor in a vat of failed jokes , twitchy acting , and general boorishness 
(ROOT (S (VP (VBZ loses) (NP (NP (PRP$ its) (NN sense)) (PP (IN of) (NP (NN humor)))) (PP (IN in) (NP (NP (DT a) (NN vat)) (PP (IN of) (NP (NP (VBN failed) (NNS jokes)) (, ,) (NP (JJ twitchy) (NN acting)) (, ,) (CC and) (NP (JJ general) (NN boorishness)))))))))
(ROOT (S (VP (VBZ ) (NP (NP (PRP$ ) (NN )) (PP (IN ) (NP (NN )))) (PP (IN ) (NP (NP (DT ) (NN )) (PP (IN ) (NP (NP (VBN ) (NNS )) (, ) (NP (JJ ) (NN )) (, ) (CC ) (NP (JJ ) (NN )))))))))