A small black and brown dog is standing in the snow.
A dog is rolling around in the snow.
A dog is either standing in the snow or rolling around in the snow, but not both.
exists e1 s1 s2 s3 x1 x2.(n_snow(x2) & in(e1,x2) & Actor(e1,x1) & v_stand(e1) & n_dog(x1) & a_brown(s3) & Theme(s3,x1) & a_black(s2) & Theme(s2,x1) & a_small(s1) & Theme(s1,x1))
exists e1 s1 x1 x2.(n_snow(x2) & a_around(s1) & Manner(e1,s1) & in(e1,x2) & Actor(e1,x1) & v_roll(e1) & n_dog(x1))