A woman is painting with a stencil.
A lady is painting her son's portrait.
It cannot be inferred that the woman is using a stencil to paint her sons portrait.
exists e1 x1 x2 x3.(with(e1,x3) & n_stencil(x3) & Theme(e1,x2) & Actor(e1,x1) & v_paint(e1) & n_thing(x2) & n_woman(x1))
exists e1 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_paint(e1) & n_portrait(x3) & of(x3,x2) & n_son(x2) & of(x2,x1) & n_female(x1) & n_lady(x1))