Several bikers on a stone road, with spectators watching.
The bikers are on a stone road.
That there are spectators watching the bikers on a stone road implies there is a bike competition.
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 p1 x1.(n_biker(x1) & exists x2 x3.(on(x1,x2) & n_road(x2) & of(x2,x3) & n_stone(x3)))