The dogs play in the snow on hind legs.
The dogs are playing without their owners.
There is nothing to indicate that the dogs are playing without their owners.
exists e1 x1 x2 x3 x4.(n_snow(x2) & n_dog(x1) & in(e1,x2) & on(x2,x3) & n_leg(x3) & of(x3,x4) & n_hind(x4) & Actor(e1,x1) & v_play(e1))
exists e1 x1 x2.(n_owner(x2) & of(x2,x1) & n_thing(x1) & n_dog(x1) & -with(e1,x2) & Actor(e1,x1) & v_play(e1))