Four men, two of them with guitars, perform on a stage while several people with their hands in the air watch.
Four men, two with guitars and two playing drums, play music in front of an audience.
The other two may be playing instruments besides drums.
exists e1 s1 x1 x2 x3 x4 x5 x6 x7 x8.(n_watch(x7) & of(x7,x8) & n_air(x8) & in(e1,x7) & with(e1,x6) & n_hand(x6) & of(x6,x1) & n_thing(x1) & n_thing(x1) & while(e1,x5) & n_people(x5) & a_several(s1) & Theme(s1,x5) & on(e1,x4) & n_stage(x4) & Actor(e1,x1) & v_perform(e1) & rel(x1,x2) & with(x2,x3) & n_guitar(x3) & of(x2,x1) & n_thing(x2) & card_eq_2(x2) & n_man(x1) & card_eq_4(x1))
exists e1 e2 x1 x2 x3 x4 x5 x6 x7 x8.(in(e2,x7) & of(x7,x8) & n_audience(x8) & n_front(x7) & Theme(e2,x6) & Actor(e2,x1) & v_play(e2) & n_music(x6) & rel(x1,x2) & with(x2,x3) & subset_of(x5,x3) & n_drum(x5) & Actor(e1,x5) & v_play(e1) & card_eq_2(x5) & subset_of(x4,x3) & n_guitar(x4) & n_thing(x2) & card_eq_2(x2) & n_man(x1) & card_eq_4(x1))