A guy does tricks on his bike.
A cyclist performs tricks on his bicycle
Guy on bike is the  cyclist performing tricks on his bicycle
exists e1 x1 x2 x3.(on(e1,x3) & n_bike(x3) & of(x3,x1) & n_male(x1) & Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & n_trick(x2) & n_guy(x1))
exists e1 x1 x2 x3.(on(e1,x3) & n_bicycle(x3) & of(x3,x1) & n_male(x1) & Theme(e1,x2) & Actor(e1,x1) & v_perform(e1) & n_trick(x2) & n_cyclist(x1))