13907
Tesco  shares fell 2.6 percent after the supermarket giant announced its chief executive  Sir Terry Leahy  would retire in March next year .
 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