A stage performance appears to lead to violence while the band plays on.
The stage performance stops because the radio is on.
If the performance stops, it's not possible for the band to play on.
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.(n_radio(x3) & n_performance(x1) & of(x1,x2) & n_stage(x2) & exists s1.(Theme(s1,x3) & a_on(s1)) & because(e1,p1) & Actor(e1,x1) & v_stop(e1))