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Zehrs stores have been known in  Ontario  by three distinct names :  Zehrs Markets  Zehrs Food Plus and Zehrs Greatfood ( similar to the new Loblaw Greatfood locations opened in the Greater Toronto Area ) .
 city of headquarters: Ontario, Zehrs Markets
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: Ontario, Zehrs Markets