William said that a frog dusted the strawberry .
* strawberry ( x _ 7 ) ; say . agent ( x _ 1 , William ) AND say . ccomp ( x _ 1 , x _ 5 ) AND frog ( x _ 4 ) AND dust . agent ( x _ 5 , x _ 4 ) AND dust . theme ( x _ 5 , x _ 7 )