Two hikers on a dirt road.
Two hikers taking a swim.
They are either on a dirt road or taking a swim.
exists x1 x2 x3.(a_topic(x1) & on(x1,x2) & n_road(x2) & of(x2,x3) & n_dirt(x3) & n_hiker(x1) & card_eq_2(x1))
exists e1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_take(e1) & n_swim(x3) & (x1 = x2) & n_hiker(x1) & card_eq_2(x1))