132817
Vladimir Shlapentokh ( , Vladimir Èmmanuilovič Šlâpentoh ) ( born 19 October 1926 ) is a Soviet-born American sociologist , historian , and political scientist , notable for his work on Soviet and Russian society and politics as well as theoretical work in the fields of sociology .
 Vladimir Shlapentokh, Vladimir
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Vladimir Shlapentokh, Vladimir