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Holly Brook  Hafermann ( born February 23 1986 ) known professionally as Skylar Grey is an  American  multi-instrumentalist and singer and songwriter .
 origin: Holly Brook, American
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:  Holly Brook, American 
Answer:
 origin: Holly Brook, American