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Lee  served as  Singapore  's prime minister from 1959 to 1990 and remains an influential adviser in the cabinet of his son Prime Minister Lee Hsien Loong with the special title of minister mentor .
 employee of: Lee, Singapore
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: Lee, Singapore