People sitting around a table.
People are at a restaurant.
Tables are not only found in a restaurant.
exists e1 x1 x2 x3.(a_topic(x1) & around(e1,x3) & n_table(x3) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_people(x1))
exists p1 x1.(exists x2.(at(x1,x2) & n_restaurant(x2)) & n_people(x1))