is one of the best actors there is . 
(ROOT (S (VP (VBZ is) (NP (NP (CD one)) (PP (IN of) (NP (NP (DT the) (JJS best) (NNS actors)) (SBAR (S (NP (EX there)) (VP (VBZ is)))))))) (. .)))
(ROOT (S (VP (VBZ ) (NP (NP (CD )) (PP (IN ) (NP (NP (DT ) (JJS ) (NNS )) (SBAR (S (NP (EX )) (VP (VBZ )))))))) (. )))