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In 1990 he moved to the Chair of Organic Chemistry at Birmingham University and was Head of the School of Chemistry there ( 1993 97 ) before moving to  UCLA  as the  Saul Winstein  Professor of Chemistry in 1997 .
 employee of: UCLA, Saul Winstein
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: UCLA, Saul Winstein