A large group of people are enjoying drinks.
The people are at a restaurant.
Groups of people drinking are not necessarily at a restaurant.
exists e1 s1 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_enjoy(e1) & n_drink(x3) & of(x1,x2) & n_people(x2) & n_group(x1) & a_large(s1) & Theme(s1,x1))
exists p1 x1.(n_people(x1) & exists x2.(at(x1,x2) & n_restaurant(x2)))