Walking home on a cold winters day.
There is snow on the ground.
There isn't necessarily snow on the ground just because it is a cold winter day.
exists e1 s1 x1 x2 x3 x4.(on(e1,x3) & n_day(x3) & of(x3,x4) & n_winter(x4) & a_cold(s1) & Theme(s1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_walk(e1) & n_home(x2) & n_thing(x1))
exists p1 x1 x3.(n_ground(x3) & exists x2.((x1 = x2) & on(x2,x3) & n_snow(x2)))