A dog runs through the snow.
A cat is sleeping by the fireplace.
A dog and a cat are different types of animals.
exists e1 x1 x2.(n_snow(x2) & through(e1,x2) & Actor(e1,x1) & v_run(e1) & n_dog(x1))
exists e1 x1 x2.(n_fireplace(x2) & by(e1,x2) & Actor(e1,x1) & v_sleep(e1) & n_cat(x1))