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