8688
In the earlier meeting Liu traced China-U.S. science and technology cooperation to an agreement signed by  Chinese  leader  Deng Xiaoping  and U.S. President Jimmy Carter in 1979 the first year of diplomatic relations .
 origin: Chinese, Deng Xiaoping
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:
 origin: Chinese, Deng Xiaoping