Eight men are standing on a stage playing instruments.
Several women perform their music.
The people can either be men or women.
exists e1 x1 x2 x3 x4.(on(e1,x2) & n_instrument(x2) & of(x2,x4) & n_playing(x4) & of(x2,x3) & n_stage(x3) & Actor(e1,x1) & v_stand(e1) & n_man(x1) & card_eq_8(x1))
exists e1 s1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_perform(e1) & n_music(x2) & of(x2,x1) & n_thing(x1) & n_woman(x1) & a_several(s1) & Theme(s1,x1))