12792
The June 7 2009 cable said Swan's chief of staff has told us on several occasions that BHP has played its cards with consummate skill in part due to the increasing marginalisation of  BHP  CEO Marius Kloppers as BHP chairman  Don Argus  has taken the lead in lobbying the GOA [ government of Australia ] .
 top members employees: BHP, Don Argus
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: BHP, Don Argus