Runners competing in a marathon.
People lying down on a track.
If the runners are competing in marathon, they would not be lying down on a track.
exists e1 x1 x2 x3.(a_topic(x1) & in(e1,x3) & n_marathon(x3) & Actor(e1,x2) & v_compete(e1) & (x1 = x2) & n_runner(x1))
exists e1 s1 x1 x2 x3.(a_topic(x1) & on(e1,x3) & n_track(x3) & a_down(s1) & Manner(e1,s1) & Actor(e1,x2) & v_lie(e1) & (x1 = x2) & n_people(x1))