A woman and a young girls in dresses dancing.
A group of females are in dresses dancing.
A woman and young girls together would be considered a group of females.
exists e1 s1 s2 x1 x2 x3 x4.(a_topic(s1) & subset_of(x2,s1) & in(x2,x3) & Actor(e1,x4) & v_dance(e1) & (x3 = x4) & n_dress(x3) & n_girl(x2) & a_young(s2) & Theme(s2,x2) & subset_of(x1,s1) & n_woman(x1))
exists p1 x1 x2.(exists e1 x3 x4.(in(x1,x3) & Actor(e1,x4) & v_dance(e1) & (x3 = x4) & n_dress(x3)) & of(x1,x2) & n_female(x2) & n_group(x1))