A group of people dancing in a circle on a grass field.
People are dancing.
A group of people dancing is the same thing as people dancing.
exists e1 x1 x2 x3 x4 x5 x6.(a_topic(x1) & of(x1,x2) & on(e1,x5) & n_field(x5) & of(x5,x6) & n_grass(x6) & in(e1,x4) & n_circle(x4) & Actor(e1,x3) & v_dance(e1) & (x2 = x3) & n_people(x2) & n_group(x1))
exists e1 x1.(Actor(e1,x1) & v_dance(e1) & n_people(x1))