A man is swinging on a rope over water.
the man is a farmer
A man who is not a farmer can swing on a rope over water.
exists e1 x1 x2 x3.(on(e1,x2) & over(x2,x3) & n_water(x3) & n_rope(x2) & Actor(e1,x1) & v_swing(e1) & n_man(x1))
exists p1 x1.(n_man(x1) & exists x2.((x1 = x2) & n_farmer(x2)))