211913
From 1975 onwards , he was employed at the Faculty of Philosophy ( Department of Philosophy ) , Ss .
 organization: Ss
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Ss 
Answer:
 organization: Ss