Four children are standing around a blue and white barrel.
Children stand on a black barrel.
The children cannot stand around the barrel and on it at the same time. Also the barrel is blue and white in one instance and black in the other.
exists e1 s1 s2 x1 x2.(around(e1,x2) & n_barrel(x2) & a_white(s2) & Theme(s2,x2) & a_blue(s1) & Theme(s1,x2) & Actor(e1,x1) & v_stand(e1) & n_child(x1) & card_eq_4(x1))
exists e1 s1 x1 x2.(on(e1,x2) & n_barrel(x2) & a_black(s1) & Theme(s1,x2) & Actor(e1,x1) & v_stand(e1) & n_child(x1))