Two bicycle riders are riding along a road.
There are two people on the road.
If there are two riders on the road then there are two people.
exists e1 x1 x2 x3.(along(e1,x3) & n_road(x3) & Actor(e1,x1) & v_ride(e1) & n_rider(x1) & of(x1,x2) & n_bicycle(x2) & card_eq_2(x1))
exists p1 x1 x2.(n_road(x2) & on(p1,x2) & exists x3.((x1 = x3) & n_people(x3) & card_eq_2(x3)))