30273
He was reappointed governor of Khorasan in 892 by Al-Mu ' tadid .
 Khorasan, Al-Mu ' tadid
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Khorasan, Al-Mu ' tadid