Several bikers on a stone road, with spectators watching.
Marathon runners are waiting before the race.
Several bikers are not also marathon runners.
exists e1 s1 x1 x2 x3 x4 x5.(a_topic(x1) & on(x1,x2) & with(x2,x4) & Actor(e1,x5) & v_watch(e1) & (x4 = x5) & n_spectator(x4) & n_road(x2) & of(x2,x3) & n_stone(x3) & n_biker(x1) & a_several(s1) & Theme(s1,x1))
exists e1 x1 x2 x3.(n_race(x3) & before(e1,x3) & Actor(e1,x1) & v_wait(e1) & n_runner(x1) & (x1 = x2) & ne_nam_marathon(x2))