Men and women of various ages sit playing instruments in an orchestra while a similar group stand in the background as a choir.
Two musical groups refuse to play
The men and women are playing instruments; no groups refuse to play.
exists e1 e2 s1 s2 x1 x2 x3 x4 x5 x6 x7 x8 x9 x10.(n_background(x9) & for(e1,e2) & in(e2,x9) & as(x9,x10) & n_choir(x10) & while(e2,x7) & n_stand(x7) & of(x7,x8) & n_group(x8) & a_similar(s2) & Theme(s2,x7) & in(e2,x6) & n_orchestra(x6) & Theme(e2,x5) & Actor(e2,x1) & v_play(e2) & n_instrument(x5) & Actor(e1,x1) & v_sit(e1) & subset_of(x3,x1) & of(x3,x4) & n_age(x4) & a_various(s1) & Theme(s1,x4) & n_woman(x3) & subset_of(x2,x1) & n_man(x2))
exists e1 p1 s1 x1.(Topic(e1,p1) & Actor(e1,x1) & v_refuse(e1) & exists e2.(Actor(e2,x1) & v_play(e2)) & n_group(x1) & a_musical(s1) & Theme(s1,x1) & card_eq_2(x1))