A biker with a white helmet is in midair with a cloudy sky and city skyline in the background.
A biker is trying to win a high jump contest.
Just because a biker is in midair does not imply he is trying to win a contest.
exists p1 s1 x1 x2 x8.(n_background(x8) & exists s2 x3 x4 x5 x6 x7.(in(x1,x3) & with(x3,x4) & in(x4,x8) & n_skyline(x6) & of(x6,x7) & n_city(x7) & n_sky(x5) & subset_of(x6,x4) & subset_of(x5,x4) & a_cloudy(s2) & Theme(s2,x4) & n_midair(x3)) & with(x1,x2) & n_helmet(x2) & a_white(s1) & Theme(s1,x2) & n_biker(x1))
exists e1 p1 x1.(Topic(e1,p1) & Actor(e1,x1) & v_try(e1) & exists e2 s1 x2 x3.(Theme(e2,x2) & Actor(e2,x1) & v_win(e2) & n_contest(x2) & of(x2,x3) & n_jump(x3) & a_high(s1) & Theme(s1,x2)) & n_biker(x1))