Three people biking on a path with grass on either side of the path.
They are biking on the path.
It does seem that it can be inferred that they are biking on the path.
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_path(x2) & n_thing(x1) & on(e1,x2) & Actor(e1,x1) & v_bike(e1))