Many people are sitting in a restaurant eating their meals.
Restaurant patrons enjoying their meals.
people sitting in a restaurant  are usually restaurant patrons
exists e1 e2 x1 x2 x3 x4.(in(e1,x2) & Theme(e2,x4) & Actor(e2,x3) & v_eat(e2) & n_meal(x4) & of(x4,x1) & n_thing(x1) & (x2 = x3) & n_restaurant(x2) & Actor(e1,x1) & v_sit(e1) & n_people(x1) & n_quantity(x1))
exists e1 x1 x2 x3 x4.(a_topic(x1) & Theme(e1,x4) & Actor(e1,x3) & v_enjoy(e1) & n_meal(x4) & of(x4,x1) & n_thing(x1) & (x1 = x3) & n_patron(x1) & (x1 = x2) & ne_nam_restaurant(x2))