16925
Ms. Strayhorn 's other sons are Mark B. McClellan , 42 , the administrator of the federal Centers for Medicare and Medicare Services , and Dudley McClellan , 40 , Brad 's identical twin , the deputy general counsel for the State Bar of Texas .
 Texas, Brad
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; 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} 
Answer:
 Texas, Brad