A couple is sitting on a park bench with balloons.
a couple is outside
usually a park is outside
exists e1 x1 x2 x3 x4.(with(e1,x4) & n_balloon(x4) & on(e1,x2) & n_bench(x2) & of(x2,x3) & n_park(x3) & Actor(e1,x1) & v_sit(e1) & n_couple(x1))
exists s1 x1.(Theme(s1,x1) & a_outside(s1) & n_couple(x1))