if invincible is not quite the career peak that the pianist is for roman polanski 
(ROOT (SBAR (IN if) (S (NP (JJ invincible)) (VP (VBZ is) (RB not) (ADVP (RB quite)) (NP (NP (DT the) (NN career) (NN peak)) (SBAR (WHNP (WDT that)) (S (NP (DT the) (NN pianist)) (VP (VBZ is) (PP (IN for) (NP (JJ roman) (NN polanski)))))))))))
(ROOT (SBAR (IN ) (S (NP (JJ )) (VP (VBZ ) (RB ) (ADVP (RB )) (NP (NP (DT ) (NN ) (NN )) (SBAR (WHNP (WDT )) (S (NP (DT ) (NN )) (VP (VBZ ) (PP (IN ) (NP (JJ ) (NN )))))))))))