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General Motors  Corp. said Thursday sales of its Opel and  Vauxhall  brands dropped over 6 percent in Europe during the first nine months of the year as the global economic downturn hit consumer spending .
 subsidiaries: General Motors, Vauxhall
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "relation1: word1, word2; relation2: word3, word4". 
Option: cities of residence, top members employees, members, alternate names, origin, state or provinces of residence, title of person, spouse, city of headquarters, NA, founded by, state or province of headquarters, employee of, countries of residence, country of birth, founded, subsidiaries, country of headquarters 
Text: {0} 
Answer:
 subsidiaries: General Motors, Vauxhall