A stage performance appears to lead to violence while the band plays on.
A band playing music while fighting happens.
They are playing music while fighting which is considered violence
exists e1 p1 x1 x2 x4.(n_band(x4) & Topic(e1,p1) & Actor(e1,x1) & v_appear(e1) & exists e2 p2 x3.(exists e3 s1.(a_on(s1) & Manner(e3,s1) & Actor(e3,x4) & v_play(e3)) & while(e2,p2) & to(e2,x3) & n_violence(x3) & Actor(e2,x1) & v_lead(e2)) & n_performance(x1) & of(x1,x2) & n_stage(x2))
exists e1 p1 x1 x2 x3.(a_topic(x1) & exists e2 x4.(Actor(e2,x4) & v_happen(e2) & n_fight(x4)) & while(e1,p1) & Theme(e1,x3) & Actor(e1,x2) & v_play(e1) & n_music(x3) & (x1 = x2) & n_band(x1))