The black dog is standing by the wall next to the orange.
A dog stairs at some pieces of fruit.
Standing by the wall next to an orange does not imply he stairs at some pieces of fruit.
exists e1 s1 x1 x2 x3.(n_orange(x3) & n_wall(x2) & n_dog(x1) & a_black(s1) & Theme(s1,x1) & to(e1,x3) & r_next(e1) & by(e1,x2) & Actor(e1,x1) & v_stand(e1))
exists e1 x1 x2 x3.(at(e1,x2) & of(x2,x3) & n_fruit(x3) & n_piece(x2) & Actor(e1,x1) & v_stair(e1) & n_dog(x1))