Two motorcyclist racing on an inclined track.
Two people on bikes are driving on a track.
The two people on bike are motorcyclist racing.
exists s1 x1 x2 x3.(a_topic(x1) & on(x1,x3) & n_track(x3) & a_inclined(s1) & Theme(s1,x3) & n_racing(x1) & of(x1,x2) & n_motorcyclist(x2) & card_eq_2(x1))
exists e1 x1 x2 x3.(on(e1,x3) & n_track(x3) & Actor(e1,x1) & v_drive(e1) & on(x1,x2) & n_bike(x2) & n_people(x1) & card_eq_2(x1))