Three men are playing music on a stage.
Men are fighting
Men cannot be fighting and playing at the same time.
exists e1 x1 x2 x3.(on(e1,x3) & n_stage(x3) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_music(x2) & n_man(x1) & card_eq_3(x1))
exists e1 x1.(Actor(e1,x1) & v_fight(e1) & n_man(x1))