Two dogs fighting in the street.
Two dogs fighting over food in the street.
Just because two dogs are fighting doesn't mean it was over food.
exists e1 x1 x2 x3.(n_street(x3) & a_topic(x1) & in(e1,x3) & Actor(e1,x2) & v_fight(e1) & (x1 = x2) & n_dog(x1) & card_eq_2(x1))
exists e1 x1 x2 x3 x4.(n_street(x4) & a_topic(x1) & over(e1,x3) & in(x3,x4) & n_food(x3) & Actor(e1,x2) & v_fight(e1) & (x1 = x2) & n_dog(x1) & card_eq_2(x1))