A woman posing near a cliff
A man falling off a cliff.
A woman is not a man.  One cannot be falling and posing at the same time.
exists e1 x1 x2 x3.(a_topic(x1) & near(e1,x3) & n_cliff(x3) & Actor(e1,x2) & v_pose(e1) & (x1 = x2) & n_woman(x1))
exists e1 s1 x1 x2 x3.(a_topic(x1) & a_off(s1) & Manner(e1,s1) & Theme(e1,x3) & Actor(e1,x2) & v_fall(e1) & n_cliff(x3) & (x1 = x2) & n_man(x1))