A cat slipped a melon on a stage to Amelia .
cat ( x _ 1 ) AND slip . agent ( x _ 2 , x _ 1 ) AND slip . theme ( x _ 2 , x _ 4 ) AND slip . recipient ( x _ 2 , Amelia ) AND melon ( x _ 4 ) AND melon . nmod . on ( x _ 4 , x _ 7 ) AND stage ( x _ 7 )