, poetic , earnest and -- sadly -- dull 
(ROOT (FRAG (, ,) (ADJP (JJ poetic)) (, ,) (ADJP (JJ earnest)) (CC and) (, --) (ADVP (RB sadly)) (, --) (JJ dull)))
(ROOT (FRAG (, ) (ADJP (JJ )) (, ) (ADJP (JJ )) (CC ) (, ) (ADVP (RB )) (, ) (JJ )))