A boy on a blue bicycle wearing a white helmet is performing bicycle tricks on a ramp.
a boy on a bike performs tricks
performs bike tricks is can also be said as performing bicycle trick
exists e1 e2 s1 s2 x1 x2 x3 x4 x5 x6 x7.(on(e2,x7) & n_ramp(x7) & Theme(e2,x5) & Actor(e2,x1) & v_perform(e2) & n_trick(x5) & of(x5,x6) & n_bicycle(x6) & on(x1,x2) & Theme(e1,x4) & Actor(e1,x3) & v_wear(e1) & n_helmet(x4) & a_white(s2) & Theme(s2,x4) & (x2 = x3) & n_bicycle(x2) & a_blue(s1) & Theme(s1,x2) & n_boy(x1))
exists e1 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_perform(e1) & n_trick(x3) & on(x1,x2) & n_bike(x2) & n_boy(x1))