122391
In a random self-reduction , an arbitrary worst-case instance x in the domain of f is mapped to a random set of instances y1 , ... , yk .
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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:
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