A frog sent a drink on a stage to a boy .
frog ( x _ 1 ) AND send . agent ( x _ 2 , x _ 1 ) AND send . theme ( x _ 2 , x _ 4 ) AND send . recipient ( x _ 2 , x _ 10 ) AND drink ( x _ 4 ) AND drink . nmod . on ( x _ 4 , x _ 7 ) AND stage ( x _ 7 ) AND boy ( x _ 10 )