A group of four young boys with guns stand outside.
Four young boys are inside holding guns.
Four young boys cannot inside and outside holding guns simultaneously.
exists e1 p1 s1 x1 x2 x3.(exists s2.(Theme(s2,x1) & a_outside(s2)) & Topic(e1,p1) & Actor(e1,x1) & v_stand(e1) & of(x1,x2) & with(x2,x3) & n_gun(x3) & n_boy(x2) & a_young(s1) & Theme(s1,x2) & card_eq_4(x2) & n_group(x1))
exists p1 s1 x1.(exists e1 s2 x2.((x1 = x2) & n_gun(x2) & Actor(e1,x2) & v_hold(e1) & a_inside(s2) & Theme(s2,x2)) & n_boy(x1) & a_young(s1) & Theme(s1,x1) & card_eq_4(x1))