leaves a lot to be desired . 
(ROOT (S (VP (VBZ leaves) (NP (NP (DT a) (NN lot)) (SBAR (S (VP (TO to) (VP (VB be) (VP (VBN desired)))))))) (. .)))
(ROOT (S (VP (VBZ ) (NP (NP (DT ) (NN )) (SBAR (S (VP (TO ) (VP (VB ) (VP (VBN )))))))) (. )))