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The White Paper said that because of a lack of unified original production site rules , each country , when formulating its own original production site rule , often starts out from the needs of its own country , and standards differ , degrees of strictness vary , and randomness sometimes exists in assessing the original production site of imported goods .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: date, organization, person, geographical social political, national religious political, facility, cardinal, location, work of art, law, event, product, ordinal, percent, time, quantity, money, language 
Text: {0} 
Answer:
 None