The lamb was mailed the cake in a barrel by a boy .
* lamb ( x _ 1 ) ; * cake ( x _ 5 ) ; mail . recipient ( x _ 3 , x _ 1 ) AND mail . theme ( x _ 3 , x _ 5 ) AND mail . agent ( x _ 3 , x _ 11 ) AND cake . nmod . in ( x _ 5 , x _ 8 ) AND barrel ( x _ 8 ) AND boy ( x _ 11 )