A lovely couple is dancing behind a stage.
Two people are dancing to music.
A couple are two people.
exists e1 s1 x1 x2.(behind(e1,x2) & n_stage(x2) & Actor(e1,x1) & v_dance(e1) & n_couple(x1) & a_lovely(s1) & Theme(s1,x1))
exists e1 x1 x2.(to(e1,x2) & n_music(x2) & Actor(e1,x1) & v_dance(e1) & n_people(x1) & card_eq_2(x1))