a person jumping off of a sand dune.
The sand dune is on the moon.
person jumping and the moon are different.
exists e1 x1 x2 x3 x4.(a_topic(x1) & of(e1,x3) & n_dune(x3) & of(x3,x4) & n_sand(x4) & r_off(e1) & Actor(e1,x2) & v_jump(e1) & (x1 = x2) & n_person(x1))
exists p1 x1 x2 x3.(n_moon(x3) & n_dune(x1) & of(x1,x2) & n_sand(x2) & on(x1,x3))