A snowboarder going over a cliff.
A person is on a snow covered mountain.
A snowboarder in a person is on a cliff from where he can see snow covrered mountain.
exists e1 x1 x2 x3.(a_topic(x1) & over(e1,x3) & n_cliff(x3) & Actor(e1,x2) & v_go(e1) & (x1 = x2) & n_snowboarder(x1))
exists p1 x1.(exists e1 x2 x3.(on(x1,x2) & n_mountain(x2) & Theme(e1,x2) & v_cover(e1) & of(x2,x3) & n_snow(x3)) & n_person(x1))