A bicyclist performing a trick over a heavily graffitied wall.
A cyclist is on top of a wall
The cyclist is performing a trick over a wall therefore the cyclist is on top of a wall.
exists e2 e1 x1 x2 x3 x4.(a_topic(x1) & over(e1,x4) & n_wall(x4) & Theme(e2,x4) & v_graffity(e2) & r_heavily(x4) & Theme(e1,x3) & Actor(e1,x2) & v_perform(e1) & n_trick(x3) & (x1 = x2) & n_bicyclist(x1))
exists p1 x1.(exists x2 x3.(on(x1,x2) & of(x2,x3) & n_wall(x3) & n_top(x2)) & n_cyclist(x1))