Definition: You will be given a passage, and your task is to generate a Yes/No question that is answerable based on the given passage.
Input: Puerto Rico (Spanish for ``Rich Port''), officially the Commonwealth of Puerto Rico (Spanish: Estado Libre Asociado de Puerto Rico, lit. ``Free Associated State of Puerto Rico'') and briefly called Porto Rico, is an unincorporated territory of the United States located in the northeast Caribbean Sea.
Output:
is porto rico a part of the united states?