EuroVacations.com advertises "There is only one Paris." This seems inarguable, altho Tolstoy did point it out in War and Peace. There is another; I think it is in Texas. There might be another still; perhaps in Illinois. But "there is only one Paris" which is, it seems, just the sort of clause, empty of any meaning (or available to be filled with any meaning the reader wishes to attribute to it), about which inselpeter writes.