Couples and singles dancing with numbers attached to them.
There;s a dance contest.
Dancing people can have numbers attached to them and yet not be part of a dance contest.
exists e2 e1 x1 x2 x3 x4 x5.(to(e2,x2) & n_thing(x2) & Theme(e2,x1) & v_attach(e2) & subset_of(x3,x1) & with(e1,x5) & n_number(x5) & Actor(e1,x4) & v_dance(e1) & (x3 = x4) & n_singles(x3) & subset_of(x2,x1) & n_couple(x2))
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_s(e1) & n_contest(x2) & of(x2,x3) & n_dance(x3))