a boy performs a stunt on a BMX bike.
The boy is doing a stunt on his bike for the crowd.
the stunt may have been performed alone and not for the crowd
exists e1 x1 x2 x3 x4.(on(e1,x3) & n_bike(x3) & (x3 = x4) & ne_org_bmx(x4) & Theme(e1,x2) & Actor(e1,x1) & v_perform(e1) & n_stunt(x2) & n_boy(x1))
exists e1 x1 x2 x3 x4.(n_crowd(x4) & n_bike(x3) & of(x3,x1) & n_male(x1) & n_boy(x1) & for(e1,x4) & Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & on(x2,x3) & n_stunt(x2))