65435
He wrote a series of ten papers , A Mathematical Theory of Natural and Artificial Selection , deriving expressions for the direction and rate of change of gene frequencies , and also analyzing the interaction of natural selection with mutation and migration .
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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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