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There are seven engineering colleges in  Madurai  affiliated to Anna University with the  Thiagarajar College of Engineering  being the oldest of all .
 city of headquarters: Madurai, Thiagarajar College of Engineering
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: Madurai, Thiagarajar College of Engineering