If Hong Kong takes a medal, do you think it's taken by Chinese?
===================================
Borders:
Puerto Rico is under the U.S. customs jurisdiction. Borders are open between P.R. and the U.S., allowing for free movement of people and merchandise.
Administrative Divisions: None (Commonwealth associated with the U.S.); there are no first-order administrative divisions as defined by the U.S. Government, but there are 78 municipalities.