5021
In announcing the aid resumption , R. Nicholas Burns , the under secretary of state for political affairs , who is on a visit to Belgrade , said he believed that Serbia was seriously working to track down one of the tribunal 's most wanted fugitives , Ratko Mladic .
 country of capital: Serbia, Belgrade; location contains: Serbia, Belgrade
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: word3, word4". 
Option: ethnicity, place lived, geographic distribution, company industry, country of administrative divisions, administrative division of country, location contains, person of company, profession, ethnicity of people, company shareholder among major shareholders, sports team of location, religion, neighborhood of, company major shareholders, place of death, nationality, children, company founders, company founded place, country of capital, company advisors, sports team location of teams, place of birth 
Text: {0} 
 Entity Pairs:  Serbia, Belgrade; Serbia, Belgrade 
Answer:
 country of capital: Serbia, Belgrade; location contains: Serbia, Belgrade