sustain an enjoyable level of ridiculousness 
(ROOT (S (VP (VB sustain) (NP (NP (DT an) (JJ enjoyable) (NN level)) (PP (IN of) (NP (NN ridiculousness)))))))
(ROOT (S (VP (VB ) (NP (NP (DT ) (JJ ) (NN )) (PP (IN ) (NP (NN )))))))