Several people are seated in chairs at a restaurant with cups of coffee in saucers and food set in front of them.
People are at the restaurant.
If people are sitting in chairs and have coffee and food they're definitely at the restaurant.
exists e2 e1 s1 x1 x2 x3 x4 x5 x6 x7 x8 x9 x10.(at(e1,x3) & with(x3,x4) & of(x4,x5) & in(e2,x10) & of(x10,x1) & n_thing(x1) & n_front(x10) & Theme(e2,x9) & v_set(e2) & (x5 = x9) & subset_of(x8,x5) & n_food(x8) & subset_of(x6,x5) & in(x6,x7) & n_saucer(x7) & n_coffee(x6) & n_cup(x4) & n_restaurant(x3) & in(e1,x2) & n_chair(x2) & Theme(e1,x1) & v_seat(e1) & n_people(x1) & a_several(s1) & Theme(s1,x1))
exists p1 x1 x2.(n_restaurant(x2) & at(x1,x2) & n_people(x1))