81601
History The castle was built around 1120 by Saif al-Mulk ibn Amrun , and was sold to the Ismailis 1138 by his son Musa .
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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:  
Answer:
 None