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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 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:  Lee, Singapore 
Answer:
 employee of: Lee, Singapore