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Timur the Lame now directed his campaign against these two powers before concentrating on Sultan Ahmed Jalayir and Qara Yusuf .
 Timur the Lame, Sultan Ahmed Jalayir, Qara Yusuf
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Timur the Lame, Sultan Ahmed Jalayir, Qara Yusuf