Three male and female pairs of dancers are on the stage at the ballet, with other ballerinas in the background.
The people are experienced dancers.
Not all dancers are experienced dancers.
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.(n_people(x1) & exists s1 x2.((x1 = x2) & n_dancer(x2) & a_experienced(s1) & Theme(s1,x2)))