A woman an children walking on a rainy street in the city.
The woman is the mother.
The fact that a woman an children are walking doesn't imply the woman is their mother.
exists x5.(n_city(x5) & all x1.(n_child(x1) -> exists e1 s1 x2 x3 x4.(a_topic(x2) & in(e1,x5) & on(e1,x4) & n_street(x4) & a_rainy(s1) & Theme(s1,x4) & Actor(e1,x3) & v_walk(e1) & (x2 = x3) & for(x2,x1) & n_woman(x2))))
exists p1 x1 x2.(n_mother(x2) & n_woman(x1) & (x1 = x2))