A person standing a rocky ridge.
Someone is on top of a ridge.
A person is someone and to stand on a rocky ridge means to be on top of that ridge.
exists e1 s1 x1 x2 x3.(a_topic(x1) & n_ridge(x3) & a_rocky(s1) & Theme(s1,x3) & Time(e1,x3) & Actor(e1,x2) & v_stand(e1) & (x1 = x2) & n_person(x1))
exists p1 x1.(exists x2 x3.(on(x1,x2) & of(x2,x3) & n_ridge(x3) & n_top(x2)) & n_person(x1))