is so convinced of its own brilliance that , if it were a person , you 'd want to smash its face in . 
(ROOT (S (VP (VBZ is) (ADJP (RB so) (VBN convinced) (PP (IN of) (NP (PRP$ its) (JJ own) (NN brilliance))) (SBAR (IN that) (, ,) (S (SBAR (IN if) (S (NP (PRP it)) (VP (VBD were) (NP (DT a) (NN person))))) (, ,) (NP (PRP you)) (VP (MD 'd) (VP (VB want) (S (VP (TO to) (VP (VB smash) (NP (PRP$ its) (NN face)) (PP (IN in))))))))))) (. .)))
(ROOT (S (VP (VBZ ) (ADJP (RB ) (VBN ) (PP (IN ) (NP (PRP$ ) (JJ ) (NN ))) (SBAR (IN ) (, ) (S (SBAR (IN ) (S (NP (PRP )) (VP (VBD ) (NP (DT ) (NN ))))) (, ) (NP (PRP )) (VP (MD ) (VP (VB ) (S (VP (TO ) (VP (VB ) (NP (PRP$ ) (NN )) (PP (IN ))))))))))) (. )))