The rock band Lynyrd Skynyrd is playing music on stage on their God& Guns World Tour.
Metallica is playing on stage.
The band cannot be both Lynyrd Skynyrd and Metallica
exists e1 x1 x2 x3 x4 x5 x6 x7 x8 x9 x10.(ne_org_tour(x7) & (x7 = x10) & ne_org_world(x10) & (x7 = x9) & ne_org_guns(x9) & ne_org_&(x7) & (x7 = x8) & ne_org_god(x8) & of(x7,x2) & n_thing(x2) & ne_per_skynyrd(x1) & (x1 = x4) & ne_per_lynyrd(x4) & of(x1,x3) & n_band(x3) & of(x1,x2) & n_rock(x2) & on(e1,x6) & on(x6,x7) & n_stage(x6) & Theme(e1,x5) & Actor(e1,x1) & v_play(e1) & n_music(x5))
exists e1 x1 x2.(ne_geo_metallica(x1) & on(e1,x2) & n_stage(x2) & Actor(e1,x1) & v_play(e1))