Three male and female pairs of dancers are on the stage at the ballet, with other ballerinas in the background.
There are dancers putting on a show.
Being on the stage does not imply they are putting on a show.
exists p1 s1 x1 x2 x3 x4 x5 x6 x7 x8.(n_background(x7) & n_ballerina(x6) & n_ballet(x4) & n_stage(x8) & with(p1,x5) & in(x5,x7) & -(x5 = x6) & n_ballerina(x5) & at(p1,x4) & on(x1,x8) & of(x1,x3) & n_dancer(x3) & n_pair(x1) & a_female(s1) & Theme(s1,x1) & of(x1,x2) & n_male(x2) & card_eq_3(x1))
exists p1 x1 e1 x2 x3 x4.((x1 = x2) & on(e1,x4) & n_show(x4) & Actor(e1,x3) & v_put(e1) & (x2 = x3) & n_dancer(x2))