Couple dancing in the center of a circle of spectators.
A couple sits down to eat their lunch.
A couple that sits down to eat could not have been dancing,
exists x1 x2 x3 x4 x5.(n_center(x3) & a_topic(x1) & in(x1,x3) & of(x3,x4) & of(x4,x5) & n_spectator(x5) & n_circle(x4) & n_dancing(x1) & of(x1,x2) & n_couple(x2))
exists e1 p1 s1 x1 x2.(a_down(s1) & Manner(e1,s1) & Topic(e1,p1) & Actor(e1,x1) & v_sit(e1) & exists e2.(Theme(e2,x2) & Actor(e2,x1) & v_eat(e2)) & n_lunch(x2) & of(x2,x1) & n_thing(x1) & n_couple(x1))