Several women dancing.
A group of women on a dance floor.
Dancing does not mean they are necessarily on a dance floor.
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) & on(x1,x3) & n_floor(x3) & of(x3,x4) & n_dance(x4) & of(x1,x2) & n_woman(x2) & n_group(x1))