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Tesco  Promoting Genetically Modified Food ' Tesco chief executive  Sir Terry Leahy  has signalled that the retailer is willing to back genetically modified ( GM ) foods saying consumer attitudes have changed and it has a vital part to play .
 top members employees: Tesco, Sir Terry Leahy
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: Tesco, Sir Terry Leahy