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G.J. Harmsen Hoogewerff-chair Sustainable Chemical Technology University of Groningen  The Netherlands  ( confirmed ) Dr. Saul Lemkowitz Associate Professor in Risk Management and Sustainability  Delft University of Technology  The Netherlands ( confirmed ) * Invited pending confirmation .
 country of headquarters: The Netherlands, Delft University of Technology
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:
 country of headquarters: The Netherlands, Delft University of Technology