13039
He played again both single and double events , in which he partnered up with David Nalbandian who also was his opponent in the final of the single event .
 person: David Nalbandian
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: David Nalbandian 
Answer:
 person: David Nalbandian