A woman is standing and talking on her cellphone.
There is one woman in this picture.
A woman implies there is one woman.
exists e1 e2 x1 x2 x3.(on(e2,x3) & n_cellphone(x3) & of(x3,x1) & n_female(x1) & Actor(e2,x2) & v_talk(e2) & n_woman(x2) & Actor(e1,x1) & v_stand(e1) & n_woman(x1))
exists p1 x1 x3.(n_picture(x3) & exists x2.((x1 = x2) & in(x2,x3) & n_woman(x2) & card_eq_1(x2)))