A mean looking dog is in the snow and showing his teeth.
A friendly dog is rolling around in the snow.
A mean dog can not be a friendly dog at the same time.
exists e1 p1 x1 x2 x4 x6.(n_tooth(x6) & of(x6,x4) & n_male(x4) & n_snow(x4) & exists e2 x3 x5.(in(x1,x3) & subset_of(e2,x3) & Theme(e2,x6) & Actor(e2,x5) & v_show(e2) & n_thing(x5) & subset_of(x4,x3)) & n_dog(x1) & Actor(e1,x1) & v_look(e1) & of(x1,x2) & n_mean(x2))
exists e1 s1 s2 x1 x2.(n_snow(x2) & a_around(s2) & Manner(e1,s2) & in(e1,x2) & Actor(e1,x1) & v_roll(e1) & n_dog(x1) & a_friendly(s1) & Theme(s1,x1))