Two motorcycle racers are driving on a race course.
Motorized vehicle riders are moving in a clockwise direction.
Motorcycle racers need not be driving in a clockwise direction.
exists e1 x1 x2 x3 x4.(on(e1,x3) & n_course(x3) & of(x3,x4) & n_race(x4) & Actor(e1,x1) & v_drive(e1) & n_racer(x1) & of(x1,x2) & n_motorcycle(x2) & card_eq_2(x1))
exists e1 e2 s1 x1 x2 x3.(in(e2,x3) & n_direction(x3) & a_clockwise(s1) & Theme(s1,x3) & Actor(e2,x1) & v_move(e2) & n_rider(x1) & of(x1,x2) & n_vehicle(x2) & Theme(e1,x1) & v_motorize(e1))