Three people biking on a path with grass on either side of the path.
Three people are swimming across the English Channel.
The people can either go swimming or biking, not both at the same time.
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 x3.(ne_org_channel(x2) & (x2 = x3) & ne_org_english(x3) & across(e1,x2) & Actor(e1,x1) & v_swim(e1) & n_people(x1) & card_eq_3(x1))