serious subject matter and dark , funny humor 
(ROOT (NP (NP (JJ serious) (NN subject) (NN matter)) (CC and) (NP (JJ dark) (, ,) (JJ funny) (NN humor))))
(ROOT (NP (NP (JJ ) (NN ) (NN )) (CC ) (NP (JJ ) (, ) (JJ ) (NN ))))