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Arthur Rorsch  PhD Emeritus Professor Molecular Genetics  Leiden University  The Netherlands .
 top members employees: Arthur Rorsch, Leiden University
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:  Arthur Rorsch, Leiden University 
Answer:
 top members employees: Arthur Rorsch, Leiden University