The customer hoped that the cake was stabbed by Grayson .
* customer ( x _ 1 ) ; * cake ( x _ 5 ) ; hope . agent ( x _ 2 , x _ 1 ) AND hope . ccomp ( x _ 2 , x _ 7 ) AND stab . theme ( x _ 7 , x _ 5 ) AND stab . agent ( x _ 7 , Grayson )