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A native of  Charlotte  North Carolina Humphries attended  Mallard Creek High School  where he was an All-American offensive lineman and cleared the way for 2000-yard rusher Jela Duncan .
 city of headquarters: Charlotte, Mallard Creek High School
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:
 city of headquarters: Charlotte, Mallard Creek High School