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West Virginia  US Senator  Jay Rockefeller  said he would visit the mine to survey the rescue effort and promised that there would be a thorough investigation in Congress .
 employee of: West Virginia, Jay Rockefeller
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:
 employee of: West Virginia, Jay Rockefeller