A girl is talking on the phone while sitting on a wall
A girl chases a dog.
A girl cannot chase a dog while sitting on a wall
exists e1 e2 x1 x2 x3.(n_phone(x2) & while(e1,e2) & on(e2,x3) & n_wall(x3) & Actor(e2,x1) & v_sit(e2) & on(e1,x2) & Actor(e1,x1) & v_talk(e1) & n_girl(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_chase(e1) & n_dog(x2) & n_girl(x1))