27191
However , Davros had previously recruited one of the Spider Daleks as a sleeper agent for just such an eventuality , and even he was not certain in the end if he was being disintegrated or being teleported away to safety , leaving the possibility open for his return .
 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