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Lorne Calvert  Premier of Saskatchewan and leader of the New Democratic Party (  NDP  ) advised the Lieutenant Governor of Saskatchewan to call an election for November 7 2007 .
 employee of: Lorne Calvert, NDP
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:
 employee of: Lorne Calvert, NDP