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In April 2002  Stockwell Day  was replaced as leader of the  Canadian Alliance  by Stephen Harper one of the original Class of ' 88 founders of the Reform Party .
 top members employees: Stockwell Day, Canadian Alliance
Given options, please tell me the relationships of all the listed entity pairs.Output format is "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} 
 Entity Pairs:  Stockwell Day, Canadian Alliance 
Answer:
 top members employees: Stockwell Day, Canadian Alliance