Four children are having a pillow fight.
The kids are at an amusement park.
The children are either having a pillow fight or at an amusement park. If they are having a pillow fight then they would be at home in their 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.(n_kid(x1) & exists x2 x3.(at(x1,x2) & n_park(x2) & of(x2,x3) & n_amusement(x3)))