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Some subsequent ancient historians , despite following in his footsteps , criticised Herodotus , starting with Thucydides .
 person: Herodotus; person: Thucydides
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: Herodotus, Thucydides 
Answer:
 person: Herodotus; person: Thucydides