The young runners are racing through the snow.
People running in snow chasing dogs.
We have no idea if they are chasing dogs, people run in the snow for many reasons.
exists e1 s1 x1 x2.(n_snow(x2) & n_runner(x1) & a_young(s1) & Theme(s1,x1) & through(e1,x2) & Actor(e1,x1) & v_race(e1))
exists e1 x1 x2 x3 x4 x5.(a_topic(x1) & in(e1,x3) & n_dog(x3) & of(x3,x5) & n_chasing(x5) & of(x3,x4) & n_snow(x4) & Actor(e1,x2) & v_run(e1) & (x1 = x2) & n_people(x1))