Two women are dancing while men play music behind them.
Two women dance in front of the stage.
Not all women are dancing in front of the stage.
exists e1 p1 x1.(exists e2 x2 x3.(behind(e2,x1) & Theme(e2,x3) & Actor(e2,x2) & v_play(e2) & n_music(x3) & n_man(x2)) & n_thing(x1) & while(e1,p1) & Actor(e1,x1) & v_dance(e1) & n_woman(x1) & card_eq_2(x1))
exists x1 x2 x3 x4.(n_stage(x4) & a_topic(x1) & in(x1,x3) & of(x3,x4) & n_front(x3) & n_dance(x1) & of(x1,x2) & n_woman(x2) & card_eq_2(x1))