People are busy eating on the hotel.
people are at the hotel
Eating on the hotel can also be described as eating at a hotel. This is a restatement.
exists e1 p1 x1 x2.(n_hotel(x2) & exists e2.(on(e2,x2) & Actor(e2,x1) & v_eat(e2)) & Topic(e1,p1) & Actor(e1,x1) & v_busy(e1) & n_people(x1))
exists p1 x1 x2.(n_hotel(x2) & at(x1,x2) & n_people(x1))