185633
Even with the growth of Persian military power under Khosrau 's reforms , the Sassanians were still uneasy at the prospect of attacking the Hephthalite on their own and began to seek allies .
 person: Khosrau
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: Khosrau 
Answer:
 person: Khosrau