A young girl brushes her hair.
A lady is using a comb in her hair.
Just because a girl is brushing her hair does not mean she used a comb on it. She may have only used a bristle brush.
exists e1 s1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_brush(e1) & n_hair(x2) & of(x2,x1) & n_female(x1) & n_girl(x1) & a_young(s1) & Theme(s1,x1))
exists e1 x1 x2 x3.(in(e1,x3) & n_hair(x3) & of(x3,x1) & n_female(x1) & Theme(e1,x2) & Actor(e1,x1) & v_use(e1) & n_comb(x2) & n_lady(x1))