A little black dog and a large brown dog are out in the snow.
It snowed yesterday.
We cannot tell if it snowed today or yesterday.
exists s1 s2 s3 s4 s5 x1 x2 x3 x4.(n_snow(x4) & in(s5,x4) & Theme(s5,x1) & a_out(s5) & subset_of(x3,x1) & n_dog(x3) & a_brown(s4) & Theme(s4,x3) & a_large(s3) & Theme(s3,x3) & subset_of(x2,x1) & n_dog(x2) & a_black(s2) & Theme(s2,x2) & a_little(s1) & Theme(s1,x2))
exists e1 x1 x2.(n_thing(x1) & Time(e1,x2) & n_yesterday(x2) & Actor(e1,x1) & v_snow(e1))