A person is doing a jump with a skateboard on a ramp.
The person with the skateboard is playing football
Is he playing football or doing a jump
exists e1 x1 x2 x3 x4.(Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & on(x2,x4) & n_ramp(x4) & with(x2,x3) & n_skateboard(x3) & n_jump(x2) & n_person(x1))
exists e1 x1 x2 x3.(n_skateboard(x2) & n_person(x1) & Theme(e1,x3) & Actor(e1,x1) & v_play(e1) & n_football(x3) & with(x1,x2))