194882
The books are set in an alternative history where in 1866 the British had mastered space exploration indadvertantly sparking an interplanetary conflict between previously unknown inhabitants of the solar system .
 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