13893
Education He obtained a Master degree in Sociology and in Political Science at the Vrije Universiteit Brussel in 1981 and in 1987 , he obtained a PhD in Political Science .
 Vrije Universiteit Brussel
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Vrije Universiteit Brussel