A group of four children wearing pajamas have a pillow fight.
They are using pudding.
The group of children are either having a pillow fight using pillows or using pudding. When having a pillow fight, they would usually be using pillows.
exists e1 e2 x1 x2 x3 x4 x5 x6.(Theme(e2,x5) & Actor(e2,x1) & v_have(e2) & n_fight(x5) & of(x5,x6) & n_pillow(x6) & of(x1,x2) & Theme(e1,x4) & Actor(e1,x3) & v_wear(e1) & n_pajamas(x4) & (x2 = x3) & n_child(x2) & card_eq_4(x2) & n_group(x1))
exists e1 x1 x2.(n_thing(x1) & Theme(e1,x2) & Actor(e1,x1) & v_use(e1) & n_pudding(x2))