A boy passed Liam a melon in the sack .
* sack ( x _ 8 ) ; boy ( x _ 1 ) AND pass . agent ( x _ 2 , x _ 1 ) AND pass . recipient ( x _ 2 , Liam ) AND pass . theme ( x _ 2 , x _ 5 ) AND melon ( x _ 5 ) AND melon . nmod . in ( x _ 5 , x _ 8 )