6327
Some of the performers on board have been : David Campbell ( 2007 ) Human Nature ( 2006 )  Guy Sebastian  ( 2005 )  Jimmy Barnes  ( 2004 ) John Paul Young ( 2003 ) Marcia Hines ( 2002 ) John Williamson ( 2001 ) and Nikki Webster ( 2000 ) .
 None
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:
 NA: Guy Sebastian, Jimmy Barnes