A boy skateboards up a concrete ramp.
The boy is about to do a flip on his skateboard.
Just because a boy is on a ramp doesn't mean he is about to do a flip.
exists e1 s1 s2 x1 x2.(a_up(s2) & Manner(e1,s2) & Theme(e1,x2) & Actor(e1,x1) & v_skateboard(e1) & n_ramp(x2) & a_concrete(s1) & Theme(s1,x2) & n_boy(x1))
exists p1 s1 x1 x3.(n_skateboard(x3) & of(x3,x1) & n_male(x1) & n_boy(x1) & Topic(s1,p1) & Actor(s1,x1) & a_about(s1) & exists e1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & on(x2,x3) & n_flip(x2)))