A man skateboarding up a ramp.
The man is at a skate park.
Ramps do not necessarily have to be in skate parks.
exists e1 s1 x1 x2 x3.(a_topic(x1) & a_up(s1) & Manner(e1,s1) & Theme(e1,x3) & Actor(e1,x2) & v_skateboard(e1) & n_ramp(x3) & (x1 = x2) & n_man(x1))
exists p1 x1.(n_man(x1) & exists x2 x3.(at(x1,x2) & n_park(x2) & of(x2,x3) & n_skate(x3)))