most certainly has a new career ahead of him 
(ROOT (S (NP (JJS most)) (ADVP (RB certainly)) (VP (VBZ has) (NP (DT a) (JJ new) (NN career)) (ADVP (RB ahead) (PP (IN of) (NP (PRP him)))))))
(ROOT (S (NP (JJS )) (ADVP (RB )) (VP (VBZ ) (NP (DT ) (JJ ) (NN )) (ADVP (RB ) (PP (IN ) (NP (PRP )))))))