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In February 2008  Berkshire Hathaway  run by billionaire investor  Warren E. Buffett  announced that it had acquired an 8 % stake in Kraft then worth over $ 4 billion .
 top members employees: Berkshire Hathaway, Warren E. Buffett
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:
 top members employees: Berkshire Hathaway, Warren E. Buffett