A young man skateboards over a commercial trash container while two other guys watch.
Three guys are out practicing with their skateboards.
Three guys can be practicing with their skateboards without skating over a trash container. Not all guys are young.
exists p1 p2 p3 s1 s2 x1 x2 x3 x4 x6.(n_guy(x6) & for(p1,x1) & exists x7.n_event(x7) & exists e1 x5.(Actor(e1,x5) & v_watch(e1) & -(x5 = x6) & n_guy(x5) & card_eq_2(x5)) & while(p2,p3) & over(x1,x3) & n_container(x3) & of(x3,x4) & n_trash(x4) & a_commercial(s2) & Theme(s2,x3) & n_skateboard(x1) & of(x1,x2) & n_man(x2) & a_young(s1) & Theme(s1,x1))
exists e1 s1 x1 x2.(a_out(s1) & Manner(e1,s1) & with(e1,x2) & n_skateboard(x2) & of(x2,x1) & n_thing(x1) & Actor(e1,x1) & v_practice(e1) & n_guy(x1) & card_eq_3(x1))