22369
 Even former Gov. Mark Warner of Virginia , who announced last week that he had decided not to run , had invested time and money in Iowa , and Senator Barack Obama of Illinois , who is considered less likely to run , has two trips here on the calendar this campaign season . 
 Mark Warner, Virginia
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; word3, word4". 
Option: nationality, country capital, place of death, children, location contains, place of birth, place lived, administrative division of country, country of administrative divisions, company, neighborhood of, company founders 
Text: {0} 
Answer:
 Mark Warner, Virginia