90799
Impossibilism is thus held in contrast to reformist socialist parties that aim to rally support for socialism by implementing popular social reforms ( such as a welfare state ) or those who believe that socialism can emerge through gradual economic reforms implemented by an elected social democratic political party .
 None
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:  
Answer:
 None