context: Rich person is located at airport . Unused item is located at shelf. Unused item cannot have a location of climb cliff. Shelf is a means of accomplishing store thing. Bookstore is located at city. Lot book is located at bookstore. Shelf is located at bookstore. Shelf cannot have a location of climb cliff. Unidentified fly object is located at airport . Rich person cannot have a location of country. Unused item cannot have a location of morgue. City is located at country.
text: Shelf cannot have a location of city.