a man doing tricks on a bmx bike
a man performs tricks on a bike
Doing tricks on his bike would be considered a performance.
exists e1 x1 x2 x3 x4 x5.(a_topic(x1) & on(e1,x4) & n_bike(x4) & of(x4,x5) & n_bmx(x5) & Theme(e1,x3) & Actor(e1,x2) & v_do(e1) & n_trick(x3) & (x1 = x2) & n_man(x1))
exists e1 x1 x2 x3.(on(e1,x3) & n_bike(x3) & Theme(e1,x2) & Actor(e1,x1) & v_perform(e1) & n_trick(x2) & n_man(x1))