A girl forwarded a box on the paper to William .
* paper ( x _ 7 ) ; girl ( x _ 1 ) AND forward . agent ( x _ 2 , x _ 1 ) AND forward . theme ( x _ 2 , x _ 4 ) AND forward . recipient ( x _ 2 , William ) AND box ( x _ 4 ) AND box . nmod . on ( x _ 4 , x _ 7 )