A man rock climbing on a steep cliff.
A man is watching tv with friends.
man climbing cannot be a man watching tv at the same time
exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & on(e1,x4) & n_cliff(x4) & a_steep(s1) & Theme(s1,x4) & Actor(e1,x3) & v_climb(e1) & (x1 = x3) & n_rock(x1) & of(x1,x2) & n_man(x2))
exists e1 x1 x2 x3.(with(e1,x3) & n_friend(x3) & Theme(e1,x2) & Actor(e1,x1) & v_watch(e1) & n_tv(x2) & n_man(x1))