3446
Bisutun then turned to Rukn al-Daula , recognizing the latter 's sovereignty in an attempt to gain support .
 person: Bisutun; person: Rukn al-Daula
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 person: Bisutun; person: Rukn al-Daula