A woman and two children sightseeing.
Humans sightseeing.
Women and children are types of humans.
exists e1 s1 x1 x2 x3.(a_topic(s1) & Actor(e1,x3) & v_sightsee(e1) & (s1 = x3) & subset_of(x2,s1) & n_child(x2) & card_eq_2(x2) & subset_of(x1,s1) & n_woman(x1))
exists s1 x1 x2.(n_sightseeing(x1) & a_.(s1) & Theme(s1,x1) & (x1 = x2) & ne_nam_humans(x2) & a_topic(x1))