Lots of people in a restaurant eating and talking.
The people are customers of the restaurant
If the people are eating and talking in a restaurant, then they must be customers of it.
exists e1 x1 x2 x3 x4 x5 x6.(a_topic(x1) & of(x1,x5) & Actor(e1,x6) & v_talking(e1) & (x5 = x6) & n_people(x5) & of(x1,x2) & in(x2,x3) & n_eating(x3) & of(x3,x4) & n_restaurant(x4) & n_people(x2) & n_lot(x1))
exists p1 x1 x3.(n_restaurant(x3) & n_people(x1) & exists x2.((x1 = x2) & of(x2,x3) & n_customer(x2)))