Group of people play music on stage together.
People are talking on political themes on the stage.
Talking about political themes is not music.
exists e1 s1 x1 x2 x3 x4.(ne_org_group(x1) & a_together(s1) & Manner(e1,s1) & on(e1,x4) & n_stage(x4) & Theme(e1,x3) & Actor(e1,x1) & v_play(e1) & n_music(x3) & of(x1,x2) & n_people(x2))
exists e1 s1 x1 x2 x3.(n_stage(x3) & on(e1,x3) & on(e1,x2) & n_theme(x2) & a_political(s1) & Theme(s1,x2) & Actor(e1,x1) & v_talk(e1) & n_people(x1))