A bear noticed that Emma needed to walk .
bear ( x _ 1 ) AND notice . agent ( x _ 2 , x _ 1 ) AND notice . ccomp ( x _ 2 , x _ 5 ) AND need . agent ( x _ 5 , Emma ) AND need . xcomp ( x _ 5 , x _ 7 ) AND walk . agent ( x _ 7 , Emma )