Emma was offered a sandwich on the tree by the bee .
* tree ( x _ 7 ) ; * bee ( x _ 10 ) ; offer . recipient ( x _ 2 , Emma ) AND offer . theme ( x _ 2 , x _ 4 ) AND offer . agent ( x _ 2 , x _ 10 ) AND sandwich ( x _ 4 ) AND sandwich . nmod . on ( x _ 4 , x _ 7 )