Dancers dressed in orange are performing with blue lights in the background.
People are dancing.
Dancers can be performing without actually dancing.
exists e2 e1 s1 x1 x2 x3 x4 x5.(n_background(x5) & in(e2,x5) & with(e2,x4) & n_light(x4) & a_blue(s1) & Theme(s1,x4) & Actor(e2,x1) & v_perform(e2) & in(e1,x3) & n_orange(x3) & Theme(e1,x2) & v_dress(e1) & (x1 = x2) & n_dancer(x1))
exists e1 x1.(Actor(e1,x1) & v_dance(e1) & n_people(x1))