A bunch people sitting and standing in the sand at a beach.
No one is at the beach.
No one and a bunch people can't be at the same place.
exists e1 e2 x1 x2 x3 x4 x5 x6.(n_sand(x5) & at(e2,x6) & n_beach(x6) & in(e2,x5) & Actor(e2,x3) & v_stand(e2) & n_people(x3) & of(x3,x4) & n_bunch(x4) & Actor(e1,x1) & v_sit(e1) & n_people(x1) & of(x1,x2) & n_bunch(x2))
exists x2.(n_beach(x2) & -exists p1 x1.(at(x1,x2) & n_one(x1)))