3360
They also note that Ali is put together with nine other Sahaba who never supported him in his conflicts : Talha and Zubair were generals in the armies against him in the Battle of the Camel and Umar and Abu Bakr were the caliphs before Ali during the succession to Muhammad even though he ( Ali ) gave them his firm oath of allegiance .
 person: Abu Bakr; person: Muhammad
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: Abu Bakr; person: Muhammad