Cyclists await the start of a race.
Cyclists wearing yellow and red helmets are waiting for a bike race to start.
Not all cyclists have to be wearing yellow and red helmets.
exists e1 x1 x2 x3.(n_start(x2) & Theme(e1,x2) & Actor(e1,x1) & v_await(e1) & of(x2,x3) & n_race(x3) & n_cyclist(x1))
exists e1 e2 p1 s1 s2 x1 x2 x3 x4 x5.(for(e2,x4) & Topic(x4,p1) & exists e3.(Actor(e3,x4) & v_start(e3)) & n_race(x4) & of(x4,x5) & n_bike(x5) & Actor(e2,x1) & v_wait(e2) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_helmet(x3) & a_red(s2) & Theme(s2,x3) & a_yellow(s1) & Theme(s1,x3) & (x1 = x2) & n_cyclist(x1))