The dogs run in the snow pulling a sled with a person.
The dogs are trying to win the race.
The dogs are not necessarily trying to win a race.
exists e1 e2 x1 x2 x3 x4 x5.(n_snow(x2) & n_dog(x1) & in(e1,x2) & Theme(e2,x4) & Actor(e2,x3) & v_pull(e2) & with(x4,x5) & n_person(x5) & n_sled(x4) & (x2 = x3) & Actor(e1,x1) & v_run(e1))
exists e1 p1 x1 x2.(n_race(x2) & n_dog(x1) & Topic(e1,p1) & Actor(e1,x1) & v_try(e1) & exists e2.(Theme(e2,x2) & Actor(e2,x1) & v_win(e2)))