958
Russia  has in recent years stepped up legal action against businessmen deemed to have violated the law notably following the 2003 arrest of former  Yukos  oil company head Mikhail Khodorkosvky .
 country of headquarters: Russia, Yukos
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: Russia, Yukos