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Einhart Lorenz  ( born 1940 ) is a German / Norwegian historian a professor at the  University of Oslo  .
 top members employees: Einhart Lorenz, University of Oslo
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:
 top members employees: Einhart Lorenz, University of Oslo