20419
 Three months ago , nobody knew who I was , '' said Ms. Duckworth , who has received widespread support from leading Democrats like Senators Hillary Rodham Clinton of New York and John Kerry of Massachusetts , and vows to focus on education , health care and jobs . '' 
 John Kerry, Massachusetts
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:
 John Kerry, Massachusetts