An old man with a hat is painting.
A man is singing a song.
The man cannot be painting and singing a song simultaneously.
exists p1 s1 x1 x2.(exists x3.((x1 = x3) & n_painting(x3)) & with(x1,x2) & n_hat(x2) & n_man(x1) & a_old(s1) & Theme(s1,x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_sing(e1) & n_song(x2) & n_man(x1))