three black dogs and a white dog are standing in the snow.
Four dogs are waiting to be harnessed to a sled.
Just because dogs are standing in the snow it does not mean the dogs are waiting to be harnessed to a sled.
exists e1 s1 s2 x1 x2 x3 x4.(n_snow(x4) & in(e1,x4) & Actor(e1,x1) & v_stand(e1) & subset_of(x3,x1) & n_dog(x3) & a_white(s2) & Theme(s2,x3) & subset_of(x2,x1) & n_dog(x2) & a_black(s1) & Theme(s1,x2) & card_eq_3(x2))
exists e1 p1 x1.(Topic(e1,p1) & Actor(e1,x1) & v_wait(e1) & exists e2 x2.(to(e2,x2) & n_sled(x2) & Theme(e2,x1) & v_harness(e2)) & n_dog(x1) & card_eq_4(x1))