91
The  North American Institute of Aviation  ( NAIA ) was a private FAA Part-141 flight school located in  Conway  South Carolina in the United States .
 city of headquarters: North American Institute of Aviation, Conway
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: North American Institute of Aviation, Conway