20955
 Mikhail Khodorkovsky , once Russia 's richest man and now its richest prisoner , began a hunger strike several days ago to protest the treatment of his co-defendant , business partner and friend , who , he says , has been held in solitary confinement for a week . 
 nationality: Mikhail Khodorkovsky, Russia
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: nationality, country capital, place of death, children, location contains, place of birth, place lived, administrative division of country, country of administrative divisions, company, neighborhood of, company founders 
Text: {0} 
Answer:
 nationality: Mikhail Khodorkovsky, Russia