tends to pile too many `` serious issues '' on its plate at times , yet remains fairly light , always entertaining , and smartly written . 
(ROOT (S (VP (VBZ tends) (S (VP (TO to) (VP (VB pile) (NP (ADJP (RB too) (JJ many)) (`` ``) (JJ serious) (NNS issues) ('' '')) (PP (IN on) (NP (PRP$ its) (NN plate))) (PP (IN at) (NP (NNS times))))))) (, ,) (CC yet) (VP (VBZ remains) (ADJP (ADJP (RB fairly) (JJ light)) (, ,) (ADJP (RB always) (JJ entertaining)) (, ,) (CC and) (VP (ADVP (RB smartly)) (VBN written)))) (. .)))
(ROOT (S (VP (VBZ ) (S (VP (TO ) (VP (VB ) (NP (ADJP (RB ) (JJ )) (`` ) (JJ ) (NNS ) ('' )) (PP (IN ) (NP (PRP$ ) (NN ))) (PP (IN ) (NP (NNS ))))))) (, ) (CC ) (VP (VBZ ) (ADJP (ADJP (RB ) (JJ )) (, ) (ADJP (RB ) (JJ )) (, ) (CC ) (VP (ADVP (RB )) (VBN )))) (. )))