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Qichen Qian pointed out that in recent years with the cold war coming to its end , unprecedented huge changes have taken place in the international situation , and the pattern of the world is being gradually changed in a multipolar direction .
 Qichen Qian, recent years, the cold war
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:
 Qichen Qian, recent years, the cold war