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We have a very open program and we are willing to cooperate according to common international practices said  Sun Laiyan  head of the  China National Space Administration  .
 top members employees: Sun Laiyan, China National Space Administration
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:
 top members employees: Sun Laiyan, China National Space Administration