A brown and a brown dog are running.
Two dogs are running after a fox.
Dogs might be running for many reasons, not just to go after a fox.
exists e1 s1 x1 x2 x3.(Actor(e1,x1) & v_run(e1) & subset_of(x3,x1) & n_dog(x3) & a_brown(s1) & Theme(s1,x3) & subset_of(x2,x1) & n_brown(x2))
exists e1 x1 x2.(after(e1,x2) & n_fox(x2) & Actor(e1,x1) & v_run(e1) & n_dog(x1) & card_eq_2(x1))