5
Northern High School's rival schools in size and sports during the 1980s were : Broughton High School Enloe High School Millbrook High School Sanderson High School Cary High School ( in Wake County  North Carolina  )  Chapel Hill High School  and Orange High School ( all in Orange County North Carolina Grimsley High School and Page High School ( in Guilford County NC ) South Mecklenburg High School ( in Mecklenburg County North Carolina ) Hillside High School ( in Durham North Carolina ) and the then smaller Person High School ( in Person County North Carolina ) .
 state or province of headquarters: North Carolina, Chapel Hill 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:
 state or province of headquarters: North Carolina, Chapel Hill High School