Sled dogs pull a sled through a snowy forest.
Some small animals
The size of the dogs is not specified, nor is it known that small animals was in reference to the dogs.
exists e1 s1 s2 x1 x2 x3.(through(e1,x3) & n_forest(x3) & a_snowy(s2) & Theme(s2,x3) & Theme(e1,x2) & Actor(e1,x1) & v_pull(e1) & n_sled(x2) & n_dog(x1) & a_sled(s1) & Theme(s1,x1))
exists s1 x1.(a_topic(x1) & n_animal(x1) & a_small(s1) & Theme(s1,x1))