A skateboarder doing maneuvers.
A teen is jumping his skateboard over a railing
Just because they're a skateboarder doesn't mean it's a teen and not all maneuvers involve jumping over a railing.
exists e1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_do(e1) & n_maneuver(x3) & (x1 = x2) & n_skateboarder(x1))
exists e1 x1 x2 x3.(over(e1,x3) & n_railing(x3) & Theme(e1,x2) & Actor(e1,x1) & v_jump(e1) & n_skateboard(x2) & of(x2,x1) & n_male(x1) & n_teen(x1))