A group of people at a festival.
The group of people are sleeping in their beds.
People do not sleep at a festival.
exists x1 x2 x3.(a_topic(x1) & of(x1,x2) & at(x2,x3) & n_festival(x3) & n_people(x2) & n_group(x1))
exists e1 x1 x2 x3.(n_bed(x3) & of(x3,x1) & n_thing(x1) & n_group(x1) & in(e1,x3) & Actor(e1,x1) & v_sleep(e1) & of(x1,x2) & n_people(x2))