A man on a snowboard travels downhill towards the camera.
A man on a snowboard is going towards a camera because he is out of control and going to crash.
A man snowboarding downhill does not necessarily imply that he is out of control and going to crash.
exists e1 p1 x1 x2 x3.(n_camera(x3) & towards(e1,x3) & exists s1.(Theme(s1,x1) & a_downhill(s1)) & Topic(e1,p1) & Actor(e1,x1) & v_travel(e1) & on(x1,x2) & n_snowboard(x2) & n_man(x1))
exists e1 e2 p1 p2 x1 x2 x3 x4 x5.(Topic(e2,p2) & Actor(e2,x4) & v_go(e2) & exists e3.(Actor(e3,x4) & v_crash(e3)) & on(x4,x5) & n_snowboard(x5) & n_man(x4) & exists p3 x6.(r_out(x1) & of(x1,x6) & n_control(x6)) & n_male(x1) & because(e1,p1) & towards(e1,x3) & n_camera(x3) & Actor(e1,x1) & v_go(e1) & on(x1,x2) & n_snowboard(x2) & n_man(x1))