A lady in a white dress with a red purse is sitting on steps talking on a cellphone.
The ladies purse is blue.
The purse cannot simultaneously be red and blue.
exists e1 e2 s1 s2 x1 x2 x3 x4 x5 x6.(on(e1,x4) & on(e2,x6) & n_cellphone(x6) & Actor(e2,x5) & v_talk(e2) & (x4 = x5) & n_step(x4) & Actor(e1,x1) & v_sit(e1) & in(x1,x2) & with(x2,x3) & n_purse(x3) & a_red(s2) & Theme(s2,x3) & n_dress(x2) & a_white(s1) & Theme(s1,x2) & n_lady(x1))
exists s1 x1 x2.(n_purse(x1) & of(x1,x2) & n_lady(x2) & Theme(s1,x1) & a_blue(s1))