A couple with sunglasses are laying on the beach.
The couple are laying on a beach towel.
The couple does not have to be on a towel to lay on the beach.
exists e1 x1 x2 x3.(n_beach(x3) & on(e1,x3) & Actor(e1,x1) & v_lay(e1) & with(x1,x2) & n_sunglass(x2) & n_couple(x1))
exists e1 x1 x2 x3.(n_couple(x1) & on(e1,x2) & n_towel(x2) & of(x2,x3) & n_beach(x3) & Actor(e1,x1) & v_lay(e1))