5360
When the Jews of Khaybar surrendered to Muhammad after a siege , Muhammad allowed them to remain in Khaybar in return for handing over to the Muslims one half their annual produce .
 Khaybar, Muhammad, Muhammad, Khaybar
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Khaybar, Muhammad, Muhammad, Khaybar