9819
In 2006  Alberta  Progressive Conservative Premier  Ralph Klein  agreed to step down as party leader that year after he received the endorsement of only 55 % of delegates in a leadership review .
 Alberta, Ralph Klein
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; 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:
 Alberta, Ralph Klein