Two girls enjoy themselves on a swing ride.
The girls play on the seesaw.
The swing ride is different from the seesaw.
exists e1 x1 x2 x3 x4.(n_group(x2) & on(e1,x3) & n_ride(x3) & of(x3,x4) & n_swing(x4) & Theme(e1,x2) & Actor(e1,x1) & v_enjoy(e1) & n_girl(x1) & card_eq_2(x1))
exists e1 x1 x2.(n_seesaw(x2) & n_girl(x1) & on(e1,x2) & Actor(e1,x1) & v_play(e1))