41559
Antisemitism remains a substantial problem in Europe and to a greater or lesser degree , it also exists in many other nations , including Eastern Europe and the former Soviet Union , and tensions between some Muslim immigrants and Jews have grown increasingly frequent across Europe .
 Europe, Eastern Europe, Soviet Union, Europe
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Europe, Eastern Europe, Soviet Union, Europe