A four player band plays on stage.
The band group are playing their instruments.
There is a four player band playing their instruments on the stage.
exists e1 x1 x2 x3.(on(e1,x3) & n_stage(x3) & Actor(e1,x1) & v_play(e1) & n_band(x1) & of(x1,x2) & n_player(x2) & card_eq_4(x1))
exists e1 x1 x2 x3.(n_instrument(x3) & of(x3,x1) & n_thing(x1) & n_group(x1) & of(x1,x2) & n_band(x2) & Theme(e1,x3) & Actor(e1,x1) & v_play(e1))