A man sits on a cliff edge while looking out on the hills.
A man is about to jump from a cliff edge.
One can not jump from and sit on simultaneously.
exists e1 e2 s1 x1 x2 x3 x4.(n_hill(x4) & while(e1,e2) & a_out(s1) & Manner(e2,s1) & on(e2,x4) & Actor(e2,x1) & v_look(e2) & on(e1,x2) & n_edge(x2) & of(x2,x3) & n_cliff(x3) & Actor(e1,x1) & v_sit(e1) & n_man(x1))
exists p1 s1 x1.(Topic(s1,p1) & Actor(s1,x1) & a_about(s1) & exists e1 x2 x3.(from(e1,x2) & n_edge(x2) & of(x2,x3) & n_cliff(x3) & Actor(e1,x1) & v_jump(e1)) & n_man(x1))