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A short time before the company's implosion  Enron  CEO  Kenneth Lay  was interviewed by National Public Radio .
 top members employees: Enron, Kenneth Lay
Given options, please tell me the relationships of all the listed entity pairs.Output format is "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} 
 Entity Pairs:  Enron, Kenneth Lay 
Answer:
 top members employees: Enron, Kenneth Lay