A woman is holding a child.
The woman was holding the child for her friend
A woman that was holding a child doesn't necessarily mean it's her friends child.
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_hold(e1) & n_child(x2) & n_woman(x1))
exists e1 x1 x2 x3.(n_friend(x3) & of(x3,x2) & n_female(x2) & n_child(x2) & n_woman(x1) & for(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_hold(e1))