Band members are playing a song on stage.
Band giving stage performance
Performance is given by a band
exists e1 x1 x2 x3 x4.(on(e1,x4) & n_stage(x4) & Theme(e1,x3) & Actor(e1,x1) & v_play(e1) & n_song(x3) & n_member(x1) & (x1 = x2) & ne_nam_band(x2))
exists e1 x1 x2 x3.(ne_nam_band(x1) & Theme(e1,x2) & Actor(e1,x1) & v_give(e1) & n_performance(x2) & of(x2,x3) & n_stage(x3))