A person rappelling a cliff above a body of water.
A person playing poker.
A person rappelling a cliff above a body of water could not have been playing poker the same time.
exists e1 x1 x2 x3 x4 x5.(a_topic(x1) & above(e1,x4) & of(x4,x5) & n_water(x5) & n_body(x4) & Theme(e1,x3) & Actor(e1,x2) & v_rappell(e1) & n_cliff(x3) & (x1 = x2) & n_person(x1))
exists e1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_play(e1) & n_poker(x3) & (x1 = x2) & n_person(x1))