A guest passed the girl the pretzel on a rock .
* girl ( x _ 4 ) ; * pretzel ( x _ 6 ) ; guest ( x _ 1 ) AND pass . agent ( x _ 2 , x _ 1 ) AND pass . recipient ( x _ 2 , x _ 4 ) AND pass . theme ( x _ 2 , x _ 6 ) AND pretzel . nmod . on ( x _ 6 , x _ 9 ) AND rock ( x _ 9 )