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We 're known as a very strong center for both defense-related and space science-related activities said  Lee Peterson  chair of the aerospace engineering sciences department at the  University of Colorado at Boulder  .
 top members employees: Lee Peterson, University of Colorado at Boulder
Given options, please tell me the relationships of all the listed entity pairs.Output format is "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} 
 Entity Pairs:  Lee Peterson, University of Colorado at Boulder 
Answer:
 top members employees: Lee Peterson, University of Colorado at Boulder