28707
 Postwar avant-garde composers , the intellectual patricians of serialism , gathered in Darmstadt , Germany , after World War II to plot their next tone rows and pick apart old musical languages . 
 Germany, Darmstadt
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:
 Germany, Darmstadt