Four children are having a pillow fight.
Children are in the bedroom.
Having a pillow fight does not imply it being in a bedroom.
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 p1 x1 x2.(n_bedroom(x2) & in(x1,x2) & n_child(x1))