A boy and a girl ride on two seperate camels.
A couple camels are riding a couple of kids.
If the camels are giving the girl and the boy a ride, then the camels cannot be riding on the kids
exists s1 s2 x1 x2 x3 x4.(a_topic(s1) & subset_of(x2,s1) & on(x2,x4) & n_camel(x4) & a_seperate(s2) & Theme(s2,x4) & card_eq_2(x4) & n_ride(x2) & of(x2,x3) & n_girl(x3) & subset_of(x1,s1) & n_boy(x1))
exists e1 x1 x2 x3 x4.(Theme(e1,x3) & Actor(e1,x1) & v_ride(e1) & of(x3,x4) & n_kid(x4) & n_couple(x3) & n_camel(x1) & of(x1,x2) & n_couple(x2))