Five young women start their dance routine
The women dance and sing.
there is no way to tell they sing
exists e1 s1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_start(e1) & n_routine(x2) & of(x2,x3) & n_dance(x3) & of(x2,x1) & n_thing(x1) & n_woman(x1) & a_young(s1) & Theme(s1,x1) & card_eq_5(x1))
exists s1 x1 x2 x3.(n_dance(x1) & of(x1,x2) & n_woman(x2) & a_topic(s1) & subset_of(x3,s1) & n_sing(x3) & subset_of(x1,s1))