Man rides on bicycle as other people walk.
A man is engaging in a sports activity.
Man rides on bicycle which implies man is engaging in a sports activity
exists e1 x1 x2 x3 x4 x5.(n_people(x5) & Actor(e1,x1) & v_walk(e1) & as(x1,x4) & -(x4 = x5) & n_people(x4) & on(x1,x3) & n_bicycle(x3) & n_ride(x1) & of(x1,x2) & n_man(x2))
exists e1 x1 x2 x3.(in(e1,x2) & n_activity(x2) & of(x2,x3) & n_sport(x3) & Actor(e1,x1) & v_engage(e1) & n_man(x1))