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Obama also picked up the endorsement of former Sen.  Gary Hart  a  Colorado  Democrat and two-time presidential candidate .
 employee of: Gary Hart, Colorado
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:  Gary Hart, Colorado 
Answer:
 employee of: Gary Hart, Colorado