Four children are having a pillow fight.
Four kids have a slumber party.
Kid's have pillow fights at many places not just a slumber party.
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & n_fight(x2) & of(x2,x3) & n_pillow(x3) & n_child(x1) & card_eq_4(x1))
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & n_party(x2) & of(x2,x3) & n_slumber(x3) & n_kid(x1) & card_eq_4(x1))