Three children are standing in front of a billboard advertisement.
there are three children in front of a billoard in the picture
Billboard advertisement is a billoard.
exists e1 x1 x2 x3 x4.(in(e1,x2) & of(x2,x3) & n_advertisement(x3) & of(x3,x4) & n_billboard(x4) & n_front(x2) & Actor(e1,x1) & v_stand(e1) & n_child(x1) & card_eq_3(x1))
exists p1 x1 x2 x3 x4.(n_picture(x4) & in(p1,x2) & of(x2,x3) & in(x3,x4) & n_billoard(x3) & n_front(x2) & exists x5.((x1 = x5) & n_child(x5) & card_eq_3(x5)))