Four men, two of them with guitars, perform on a stage while several people with their hands in the air watch.
A group of men entertain a crowd.
four men would be a group. If they are performing on stage, they are entertaining. several people with their hands in the air would be a crowd.
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 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_entertain(e1) & n_crowd(x3) & of(x1,x2) & n_man(x2) & n_group(x1))