21115
If " G " is a connected reductive group over " R " and " K = G " is a compact subgroup then " ( G , K ) " is a Gelfand pair .
 person: Gelfand
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: Gelfand 
Answer:
 person: Gelfand