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Li Shidao ( ) ( died March 8 , 819 ) was a general of the Chinese dynasty Tang Dynasty , who , as the successor to his brother Li Shigu , ruled Pinglu Circuit ( 平盧 , headquartered in modern Tai'an , Shandong ) in a de facto independent manner from the imperial government .
 person: Li Shidao; person: Li Shigu; location: Tai'an; location: Shandong
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: Li Shidao, Li Shigu, Tai'an, Shandong 
Answer:
 person: Li Shidao; person: Li Shigu; location: Tai'an; location: Shandong