Two people are on a sled pulled by many dogs.
Two people are being pulled by dogs on a sled through the park.
Just because two people are being pulled by dogs does not mean they are riding through the park.
exists p1 x1.(exists e1 x2 x3 x4.(on(x1,x2) & Actor(e1,x4) & n_dog(x4) & n_quantity(x4) & Theme(e1,x3) & v_pull(e1) & (x2 = x3) & n_sled(x2)) & n_people(x1) & card_eq_2(x1))
exists e1 x1 x2 x3 x4.(n_park(x4) & through(e1,x4) & Actor(e1,x2) & on(x2,x3) & n_sled(x3) & n_dog(x2) & Theme(e1,x1) & v_pull(e1) & n_people(x1) & card_eq_2(x1))