A man climbs over snow covered rocks by a shore.
The man is on mars.
There aren't bodies of water, and therefore aren't shores, on mars.
exists e1 e2 x1 x2 x3 x4.(over(e1,x2) & by(x2,x4) & n_shore(x4) & n_rock(x2) & Theme(e2,x2) & v_cover(e2) & of(x2,x3) & n_snow(x3) & Actor(e1,x1) & v_climb(e1) & n_man(x1))
exists p1 x1.(n_man(x1) & exists x2.(on(x1,x2) & n_mar(x2)))