14873
He studied composition in the early 1960s with Pierre Boulez in France and Karlheinz Stockhausen in Germany .
 Pierre Boulez, France; Karlheinz Stockhausen, Germany
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:
 Pierre Boulez, France; Karlheinz Stockhausen, Germany