705
Northwest Classen High School  was built in 1955 to accommodate the growing population in the northwest corridor of  Oklahoma City  .
 city of headquarters: Northwest Classen High School, Oklahoma City
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: Northwest Classen High School, Oklahoma City