sit through , enjoy on a certain level and 
(ROOT (S (VP (VP (VB sit) (ADVP (RP through))) (, ,) (VP (VB enjoy) (PP (IN on) (NP (DT a) (JJ certain) (NN level))))) (CC and)))
(ROOT (S (VP (VP (VB ) (ADVP (RP ))) (, ) (VP (VB ) (PP (IN ) (NP (DT ) (JJ ) (NN ))))) (CC )))