Ava mailed Emma a donut in a haystack in the bag .
* bag ( x _ 10 ) ; mail . agent ( x _ 1 , Ava ) AND mail . recipient ( x _ 1 , Emma ) AND mail . theme ( x _ 1 , x _ 4 ) AND donut ( x _ 4 ) AND donut . nmod . in ( x _ 4 , x _ 7 ) AND haystack ( x _ 7 ) AND haystack . nmod . in ( x _ 7 , x _ 10 )