is still fun and enjoyable and so aggressively silly 
(ROOT (VP (VBZ is) (ADVP (RB still)) (ADJP (ADJP (JJ fun) (CC and) (JJ enjoyable)) (CC and) (ADJP (RB so) (RB aggressively) (JJ silly)))))
(ROOT (VP (VBZ ) (ADVP (RB )) (ADJP (ADJP (JJ ) (CC ) (JJ )) (CC ) (ADJP (RB ) (RB ) (JJ )))))