Liam changed the cake on a chair on the table .
* cake ( x _ 3 ) ; * table ( x _ 9 ) ; change . agent ( x _ 1 , Liam ) AND change . theme ( x _ 1 , x _ 3 ) AND cake . nmod . on ( x _ 3 , x _ 6 ) AND chair ( x _ 6 ) AND chair . nmod . on ( x _ 6 , x _ 9 )