Three people stand on a path through the woods.
The people are riding bikes on the path.
People who are standing cannot be riding bikes.
exists e1 x1 x2 x3.(n_wood(x3) & through(e1,x3) & on(e1,x2) & n_path(x2) & Actor(e1,x1) & v_stand(e1) & n_people(x1) & card_eq_3(x1))
exists e1 x1 x2 x3.(n_path(x3) & n_people(x1) & on(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_bike(x2))