Two motorcyclists racing neck and neck around a corner.
The motorcyclists are rivals.
Not all motorcyclists who race neck and neck around a corner are rivals.
exists e1 x1 x2 x3 x4 x5 x6.(a_topic(x1) & around(e1,x6) & n_corner(x6) & Theme(e1,x3) & Actor(e1,x2) & v_race(e1) & n_neck(x5) & n_neck(x4) & subset_of(x5,x3) & subset_of(x4,x3) & (x1 = x2) & n_motorcyclist(x1) & card_eq_2(x1))
exists p1 x1.(n_motorcyclist(x1) & exists x2.((x1 = x2) & n_rival(x2)))