A young guy is getting arrested.
A man on a skateboard.
On a skateboard is different than getting arrested.
exists e1 p1 s1 x1.(exists e2.(Theme(e2,x1) & v_arrest(e2)) & Topic(e1,p1) & Actor(e1,x1) & v_get(e1) & n_guy(x1) & a_young(s1) & Theme(s1,x1))
exists x1 x2.(a_topic(x1) & on(x1,x2) & n_skateboard(x2) & n_man(x1))