A brown fluffy dog lays in the snow with its green ball.
The dog is playing with his ball.
The dog laying in the snow with its ball doesn't mean it's playing.
exists s1 s2 s3 x1 x2 x3 x4.(n_ball(x4) & a_green(s3) & Theme(s3,x4) & of(x4,x3) & n_thing(x3) & n_snow(x3) & a_topic(x1) & in(x1,x3) & with(x3,x4) & n_lay(x1) & of(x1,x2) & n_dog(x2) & a_fluffy(s2) & Theme(s2,x1) & a_brown(s1) & Theme(s1,x1))
exists e1 x1 x2.(n_ball(x2) & of(x2,x1) & n_male(x1) & n_dog(x1) & with(e1,x2) & Actor(e1,x1) & v_play(e1))