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On his return he stayed for two months in Rayy , where he came across a ( now lost ) Arabic history of Tabaristan by Abu ‘ l-Hasan al-Yazdadi .
 location: Rayy
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: Rayy 
Answer:
 location: Rayy