Five girls on a carnival ride.
Five sisters are riding on a carnival ride.
Five girls are not necessarily sisters.
exists s1 x1 x2.(a_topic(x1) & on(x1,x2) & n_ride(x2) & a_carnival(s1) & Theme(s1,x2) & n_girl(x1) & card_eq_5(x1))
exists e1 s1 x1 x2.(on(e1,x2) & n_ride(x2) & a_carnival(s1) & Theme(s1,x2) & Actor(e1,x1) & v_ride(e1) & n_sister(x1) & card_eq_5(x1))