342880
He was sent out by Otho to occupy the banks of the Po river ( with several contingents ) and took up a defensive position around Mantua .
 person: Otho; location: Mantua
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: Otho, Mantua 
Answer:
 person: Otho; location: Mantua