who ca n't quite live up to it 
(ROOT (SBAR (WHNP (WP who)) (S (VP (MD ca) (RB n't) (ADVP (RB quite)) (VP (VB live) (PRT (RP up)) (PP (IN to) (NP (PRP it))))))))
(ROOT (SBAR (WHNP (WP )) (S (VP (MD ) (RB ) (ADVP (RB )) (VP (VB ) (PRT (RP )) (PP (IN ) (NP (PRP ))))))))