little girl standing on a wall
The girl is standing on the wall with her family.
There is nothing that says in the first sentence to indicate that any other people are in the picture and that they are her family.
exists e1 s1 x1 x2 x3.(a_topic(x1) & on(e1,x3) & n_wall(x3) & Actor(e1,x2) & v_stand(e1) & (x1 = x2) & n_girl(x1) & a_little(s1) & Theme(s1,x1))
exists e1 x1 x2 x3.(n_family(x3) & of(x3,x2) & n_female(x2) & n_wall(x2) & n_girl(x1) & with(e1,x3) & on(e1,x2) & Actor(e1,x1) & v_stand(e1))