A dog is running in the snow
A dog lays on the beach.
You cannot be running and lay at the same time
exists e1 x1 x2.(n_snow(x2) & in(e1,x2) & Actor(e1,x1) & v_run(e1) & n_dog(x1))
exists e1 x1 x2.(n_beach(x2) & on(e1,x2) & Actor(e1,x1) & v_lay(e1) & n_dog(x1))