A brown fluffy dog lays in the snow with its green ball.
A dog is playing outside with its favorite green ball while it stares at a squirrel.
The dog playing with the ball doesn't necessarily mean is his favorite ball. Just because the dog lays in the snow doesn't mean it stares at a squirrel.
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 p1 s1 s2 x1 x2.(exists e2 x3.(at(e2,x3) & n_squirrel(x3) & Actor(e2,x1) & v_stare(e2)) & n_thing(x1) & n_thing(x1) & while(e1,p1) & with(e1,x2) & n_ball(x2) & a_green(s2) & Theme(s2,x2) & a_favorite(s1) & Theme(s1,x2) & of(x2,x1) & r_outside(e1) & Actor(e1,x1) & v_play(e1) & n_dog(x1))