Three people biking on a path with grass on either side of the path.
The people are wearing helmets.
Just because people are biking doesn't mean they are wearing helmets.
exists e1 x1 x2 x3 x4.(a_topic(x1) & all x5.(n_side(x5) -> (with(e1,x4) & on(x4,x5) & of(x5,x3))) & n_path(x3) & n_path(x3) & n_grass(x4) & on(e1,x3) & Actor(e1,x2) & v_bike(e1) & (x1 = x2) & n_people(x1) & card_eq_3(x1))
exists e1 x1 x2.(n_people(x1) & Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & n_helmet(x2))