A child stands in the snow.
The child is standing by a snowman that he has made.
A child standing in the snow doesn't mean he is standing by a snowman that he has made.
exists e1 x1 x2.(n_snow(x2) & in(e1,x2) & Actor(e1,x1) & v_stand(e1) & n_child(x1))
exists e2 e1 x1 x2 x3.(n_male(x1) & n_child(x1) & by(e1,x2) & Theme(e2,x3) & Actor(e2,x1) & v_make(e2) & (x2 = x3) & n_snowman(x2) & Actor(e1,x1) & v_stand(e1))