52527
The novel 's other main character is Echo , a Crat ( an animal identical to a cat except that it can speak all languages and has two livers ) .
 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