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University of British Columbia law proffessor Benjamin Perrin who was named in the report as one of the world's ten anti-human-trafficking heroes spoke at the conference and called for  Stephen Harper  Prime Minister of  Canada  to announce that he will enact a national action plan to combat human trafficking to follow up on the measures that his government has already taken .
 employee of: Stephen Harper, Canada
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: Stephen Harper, Canada