Several women dancing.
A group of women line dancing.
Several is a group, and line dancing is a form of dancing.
exists e1 s1 x1 x2.(a_topic(x1) & Actor(e1,x2) & v_dance(e1) & (x1 = x2) & n_woman(x1) & a_several(s1) & Theme(s1,x1))
exists x1 x2 x3 x4.(a_topic(x1) & of(x1,x2) & n_dancing(x2) & of(x2,x4) & n_line(x4) & of(x2,x3) & n_woman(x3) & n_group(x1))