A child jumps off of a swing while it is in motion.
A child jumps of a swing into sand.
the fact that the child jumps off a swing does not imply that the jump is into sand.
exists e1 p1 x1 x2.(exists p2 x3.(in(x1,x3) & n_motion(x3)) & n_thing(x1) & while(e1,p1) & r_off(e1) & of(e1,x2) & n_swing(x2) & Actor(e1,x1) & v_jump(e1) & n_child(x1))
exists x1 x2 x3 x4.(a_topic(x1) & of(x1,x3) & into(x3,x4) & n_sand(x4) & n_swing(x3) & n_jump(x1) & of(x1,x2) & n_child(x2))