A man is skateboarding down a railing on some stairs.
The man is grocery shopping.
The man is skateboarding in a grocery store.
exists e1 s1 x1 x2 x3.(a_down(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_skateboard(e1) & on(x2,x3) & n_stair(x3) & n_railing(x2) & n_man(x1))
exists p1 x1.(n_man(x1) & exists x2 x3.((x1 = x2) & n_shopping(x2) & of(x2,x3) & n_grocery(x3)))