both lead performances are oscar-size . 
(ROOT (S (NP (DT both) (JJ lead) (NNS performances)) (VP (VBP are) (NP (NN oscar) (HYPH -) (NN size))) (. .)))
(ROOT (S (NP (DT ) (JJ ) (NNS )) (VP (VBP ) (NP (NN ) (HYPH ) (NN ))) (. )))