that have become a spielberg trademark 
(ROOT (S (NP (DT that)) (VP (VBP have) (VP (VBN become) (NP (DT a) (NN spielberg) (NN trademark))))))
(ROOT (S (NP (DT )) (VP (VBP ) (VP (VBN ) (NP (DT ) (NN ) (NN ))))))