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Some of its most notable graduates are the Latvian-born Nobel Prize laureate  Wilhelm Ostwald  the legendary Mayor of Riga George Armitstead the President of  Latvia  Andris Prime Minister Valdis Dombrovskis and many others who have earned distinction in science and society .
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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:
 NA: Wilhelm Ostwald, Latvia