Dogs pull a sled in the snow.
The dogs are running through the snow without any sled attached to them.
Dogs cannot pull a sled when no sled is attached to tham
exists e1 x1 x2 x3.(n_snow(x3) & Theme(e1,x2) & Actor(e1,x1) & v_pull(e1) & in(x2,x3) & n_sled(x2) & n_dog(x1))
exists e1 e2 p1 x1 x2 x3.(n_thing(x3) & n_snow(x3) & n_dog(x1) & exists e3.(to(e3,x3) & Actor(e3,x1) & v_attach(e3)) & Topic(e2,p1) & Actor(e2,x1) & v_sled(e2) & -all x4.(n_thing(x4) -> with(e1,x4)) & through(e1,x3) & Actor(e1,x2) & v_run(e1) & (x1 = x2))