A giraffe said that Liam rolled the ball .
* ball ( x _ 7 ) ; giraffe ( x _ 1 ) AND say . agent ( x _ 2 , x _ 1 ) AND say . ccomp ( x _ 2 , x _ 5 ) AND roll . agent ( x _ 5 , Liam ) AND roll . theme ( x _ 5 , x _ 7 )