8735
Under the agreement CNPC will take a 49 percent stake in  Nippon Oil  's refinery in Osaka western Japan while the Japanese  refiner  will keep 51 percent a Nippon Oil spokesman said .
 alternate names: Nippon Oil, refiner
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:
 alternate names: Nippon Oil, refiner