Two girls enjoying a thrill ride.
A pair of girls are on a ride
Two girls are a pair of girls.
exists e1 x1 x2 x3 x4.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_enjoy(e1) & n_ride(x3) & of(x3,x4) & n_thrill(x4) & (x1 = x2) & n_girl(x1) & card_eq_2(x1))
exists p1 x1 x2.(exists x3.(on(x1,x3) & n_ride(x3)) & of(x1,x2) & n_girl(x2) & n_pair(x1))