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According to East Germany 's ADN news agency , Mr. Krenz spoke to Soviet leader Mikhail Gorbachev by telephone over the weekend and acknowledged East Germany could learn from Moscow 's glasnost policies .
 East Germany 's, ADN, Krenz, Soviet, Mikhail Gorbachev, the weekend, East Germany, Moscow
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:
 East Germany 's, ADN, Krenz, Soviet, Mikhail Gorbachev, the weekend, East Germany, Moscow