Two dogs are running along a grassy path.
Two cats are jumping.
dogs and cats are not the same.
exists e1 s1 x1 x2.(along(e1,x2) & n_path(x2) & a_grassy(s1) & Theme(s1,x2) & Actor(e1,x1) & v_run(e1) & n_dog(x1) & card_eq_2(x1))
exists e1 x1.(Actor(e1,x1) & v_jump(e1) & n_cat(x1) & card_eq_2(x1))