A woman addresses a classroom of young children.
The woman is in front of a class.
Someone who addresses a classroom would be located in front of a class.
exists e1 s1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_address(e1) & of(x2,x3) & n_child(x3) & a_young(s1) & Theme(s1,x3) & n_classroom(x2) & n_woman(x1))
exists p1 x1.(n_woman(x1) & exists x2 x3.(in(x1,x2) & of(x2,x3) & n_class(x3) & n_front(x2)))