293641
The American press claimed that the submarine was checking wireless traffic between Russian bases , but the Russian counterpart asserted that the two boats were engaged in a ‘ cat-and-mouse game ’ , an opinion supported also by a number of Western sources .
 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