A young girl shows her friends how to use a disposable camera.
A girl taking a photo of her friends.
A girls showing how to use a camera does not necessarily imply the girl is taking a photo of her friends.
exists e1 p1 s1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_show(e1) & Topic(x2,p1) & exists e2 s2 x3.(Theme(e2,x3) & Actor(e2,x2) & v_use(e2) & n_camera(x3) & a_disposable(s2) & Theme(s2,x3)) & n_friend(x2) & of(x2,x1) & n_female(x1) & n_girl(x1) & a_young(s1) & Theme(s1,x1))
exists e1 x1 x2 x3 x4.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_take(e1) & of(x3,x4) & n_friend(x4) & of(x4,x1) & n_female(x1) & n_photo(x3) & (x1 = x2) & n_girl(x1))