One teenager taking a risk by diving on his side.
It is danger to take risk  by diving on his bed.
Just because one teenager is taking a risk by diving on his side does not mean it is a risk by diving on his bed.
exists e1 e2 x1 x2 x3 x4.(a_topic(x1) & by(e1,e2) & on(e2,x4) & n_side(x4) & of(x4,x3) & n_male(x3) & Actor(e2,x2) & v_dive(e2) & Theme(e1,x3) & Actor(e1,x2) & v_take(e1) & n_risk(x3) & (x1 = x2) & n_teenager(x1) & card_eq_1(x1))
exists p1 x1 x4.(n_bed(x4) & of(x4,x1) & n_male(x1) & n_thing(x1) & exists p2 x2.((x1 = x2) & Topic(x2,p2) & exists e1 e2 x3.(by(e1,e2) & on(e2,x4) & Actor(e2,x2) & v_dive(e2) & Theme(e1,x3) & Actor(e1,x2) & v_take(e1) & n_risk(x3)) & n_danger(x2)))