10789
As a result of Stephen Green's decision to step down earlier than planned Michael Geoghegan the then Group CEO of  HSBC  announced his retirement and  Stuart Gulliver  who led HSBC's investment-banking division since 2006 was appointed as the new Group CEO of HSBC Holdings plc effective 1 January 2011 .
 top members employees: HSBC, Stuart Gulliver
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: HSBC, Stuart Gulliver