State display key attribute of the country XML file

The attribute stateDisplayKey sets the display key to use as the label for state or province of an address. For example, PolicyCenter uses the following display keys to label the state or province field for the following countries:
Japan
stateDisplayKey="Web.AddressBook.AddressInputSet.Prefecture"
United States
stateDisplayKey="Web.AddressBook.AddressInputSet.State"

If a country.xml file does not have stateDisplayKey defined, PolicyCenter uses the value of stateDisplayKey defined for the United States.