519
Steelmakers in  Japan  like  Nippon Steel  Corporation rely on foreign countries for 50 percent of their revenue as domestic demand remains sluggish .
 country of headquarters: Japan, Nippon Steel
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: Japan, Nippon Steel