A group of joggers are running downhill on a street.
The joggers are running a marathon.
Running downhill does not mean it is a marathon.
exists e1 x1 x2 x3 x4.(on(e1,x4) & n_street(x4) & Theme(e1,x3) & Actor(e1,x1) & v_run(e1) & n_downhill(x3) & of(x1,x2) & n_jogger(x2) & n_group(x1))
exists e1 x1 x2.(n_jogger(x1) & Theme(e1,x2) & Actor(e1,x1) & v_run(e1) & n_marathon(x2))