One of the women is married with a ring on her ring finger.
Only one woman is married
Just because one woman is married, does not mean she is the only one.
exists e1 x1 x2 x3 x4.(n_female(x2) & n_woman(x2) & with(e1,x3) & on(x3,x4) & n_finger(x4) & of(x4,x3) & n_ring(x3) & n_ring(x3) & of(x4,x2) & Theme(e1,x1) & v_marry(e1) & of(x1,x2) & n_thing(x1) & card_eq_1(x1))
exists e1 x1.(Theme(e1,x1) & v_marry(e1) & n_woman(x1) & card_eq_1(x1) & r_only(x1))