A daring adolescent ramps his bicycle over another boy.
The children are practicing they're bicycle stunts, again.
there activities doesn't proved that they are practicing bicycle stunts again
(x)
exists e1 p1 x1.(n_thing(x1) & n_child(x1) & exists p2 s1.(a_again(s1) & Manner(p2,s1) & exists x2 x3.((x1 = x2) & n_stunt(x2) & of(x2,x3) & n_bicycle(x3))) & Topic(e1,p1) & Actor(e1,x1) & v_practice(e1))