Two men are walking parallel to two women
Two elderly men walking next to their wives.
The men are not necessarily elderly and the women are not necessarily their wives
exists e1 x1 x2 x3.(to(e1,x3) & n_woman(x3) & card_eq_2(x3) & Theme(e1,x2) & Actor(e1,x1) & v_walk(e1) & n_parallel(x2) & n_man(x1) & card_eq_2(x1))
exists e1 s1 x1 x2 x3.(a_topic(x1) & to(e1,x3) & n_wife(x3) & of(x3,x1) & n_thing(x1) & r_next(e1) & Actor(e1,x2) & v_walk(e1) & (x1 = x2) & n_man(x1) & a_elderly(s1) & Theme(s1,x1) & card_eq_2(x1))