A tan dog walks across the snow.
There is a canine in the snow.
Dog is a  synonym of canine.
exists e1 s1 x1 x2.(n_snow(x2) & across(e1,x2) & Actor(e1,x1) & v_walk(e1) & n_dog(x1) & a_tan(s1) & Theme(s1,x1))
exists p1 x1 x3.(n_snow(x3) & exists x2.((x1 = x2) & in(x2,x3) & n_canine(x2)))