a wild comedy that could only spring from the demented mind of the writer 
(ROOT (NP (NP (DT a) (JJ wild) (NN comedy)) (SBAR (WHNP (WDT that)) (S (VP (MD could) (ADVP (RB only)) (VP (VB spring) (PP (IN from) (NP (NP (DT the) (JJ demented) (NN mind)) (PP (IN of) (NP (DT the) (NN writer)))))))))))
(ROOT (NP (NP (DT ) (JJ ) (NN )) (SBAR (WHNP (WDT )) (S (VP (MD ) (ADVP (RB )) (VP (VB ) (PP (IN ) (NP (NP (DT ) (JJ ) (NN )) (PP (IN ) (NP (DT ) (NN )))))))))))