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Comparing Revolutionary Movements In No Other Way Out : States and Revolutionary Movements , 1945-1991 , Goodwin offers another comparative study on revolutions focusing on the second half of the twentieth century from 1914 to 1991 .
 Goodwin
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Goodwin