242348
Other characters introduced in the series include Gehn , Atrus ' power-hungry father ; Saavedro , a traumatized victim of Atrus ' sons ; and Esher , a member of an old civilization whose motives for helping the player are ambiguous .
 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