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To alleviate the economic crisis , the government introduced a few market-oriented reforms including opening to tourism , allowing foreign investment , legalizing the U.S. dollar and authorizing self-employment for some 150 occupations .
 U.S.
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 U.S.