2969
He advocated egoism and a form of amoralism in which individuals would unite in Unions of egoists only when it was in their self-interest to do so .
 location: Unions
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 location: Unions