3230
Its main base is  Saint-Pierre  Airport.Flight International 27 March 2007  Air Saint-Pierre  was established on March 6 1964 and started operations that same year .
 city of headquarters: Saint-Pierre, Air Saint-Pierre
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: Saint-Pierre, Air Saint-Pierre