that a life like this can sound so dull 
(ROOT (SBAR (IN that) (S (NP (NP (DT a) (NN life)) (PP (IN like) (NP (DT this)))) (VP (MD can) (VP (VB sound) (ADJP (RB so) (JJ dull)))))))
(ROOT (SBAR (IN ) (S (NP (NP (DT ) (NN )) (PP (IN ) (NP (DT )))) (VP (MD ) (VP (VB ) (ADJP (RB ) (JJ )))))))