a lone bicyclist jumping over a hill.
Two people walking on a bike path.
One person jumping on a bike is fewer and different than two walking.
exists e1 s1 x1 x2 x3.(a_topic(x1) & over(e1,x3) & n_hill(x3) & Actor(e1,x2) & v_jump(e1) & (x1 = x2) & n_bicyclist(x1) & a_lone(s1) & Theme(s1,x1))
exists e1 x1 x2 x3 x4.(a_topic(x1) & on(e1,x3) & n_path(x3) & of(x3,x4) & n_bike(x4) & Actor(e1,x2) & v_walk(e1) & (x1 = x2) & n_people(x1) & card_eq_2(x1))