A penguin mailed a girl a cake on the bed .
* bed ( x _ 9 ) ; penguin ( x _ 1 ) AND mail . agent ( x _ 2 , x _ 1 ) AND mail . recipient ( x _ 2 , x _ 4 ) AND mail . theme ( x _ 2 , x _ 6 ) AND girl ( x _ 4 ) AND cake ( x _ 6 ) AND cake . nmod . on ( x _ 6 , x _ 9 )