of the best actors there is 
(ROOT (PP (IN of) (NP (NP (DT the) (JJS best) (NNS actors)) (SBAR (S (NP (RB there)) (VP (VBZ is)))))))
(ROOT (PP (IN ) (NP (NP (DT ) (JJS ) (NNS )) (SBAR (S (NP (RB )) (VP (VBZ )))))))