A mother and her three children walking down a city street.
A mom and her sons are walking on the street.
Not all children are sons.
exists e1 s1 s2 x1 x2 x3 x4 x5.(a_topic(s1) & subset_of(x2,s1) & a_down(s2) & Manner(e1,s2) & Theme(e1,x4) & Actor(e1,x3) & v_walk(e1) & n_street(x4) & of(x4,x5) & n_city(x5) & (x2 = x3) & n_child(x2) & card_eq_3(x2) & of(x2,x1) & n_female(x1) & subset_of(x1,s1) & n_mother(x1))
exists e1 x1 x2 x3 x4.(n_street(x4) & on(e1,x4) & Actor(e1,x1) & v_walk(e1) & subset_of(x3,x1) & n_son(x3) & of(x3,x2) & n_female(x2) & subset_of(x2,x1) & n_mom(x2))