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The rational root theorem is a special case ( for a single linear factor ) of Gauss 's lemma on the factorization of polynomials .
 person: Gauss
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: Gauss 
Answer:
 person: Gauss