Two people ride their bikes down a dirt road.
There are people exercising outdoors.
riding bikes can be exercising
exists e1 x1 x2 x3 x4.(down(e1,x3) & n_road(x3) & of(x3,x4) & n_dirt(x4) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_bike(x2) & of(x2,x1) & n_thing(x1) & n_people(x1) & card_eq_2(x1))
exists p1 x1 e1 x2 x3 x4.((x1 = x2) & Theme(e1,x4) & Actor(e1,x3) & v_exercise(e1) & n_outdoors(x4) & (x2 = x3) & n_people(x2))