Two people are turning a corner while riding dirt bikes on a dirt course.
The two dirt bike riders are riding down a straightaway.
A straightaway is different from a corner.
exists e2 e1 x1 x2 x3 x4 x5 x6.(while(e1,e2) & on(e2,x5) & n_course(x5) & of(x5,x6) & n_dirt(x6) & Theme(e2,x3) & Actor(e2,x1) & v_ride(e2) & n_bike(x3) & of(x3,x4) & n_dirt(x4) & Theme(e1,x2) & Actor(e1,x1) & v_turn(e1) & n_corner(x2) & n_people(x1) & card_eq_2(x1))
exists e1 s1 x1 x2 x3 x4.(n_rider(x1) & of(x1,x3) & n_bike(x3) & of(x1,x2) & n_dirt(x2) & card_eq_2(x1) & a_down(s1) & Manner(e1,s1) & Theme(e1,x4) & Actor(e1,x1) & v_ride(e1) & n_straightaway(x4))