2272
After the plans were approved in  Ottawa  by Mitchell Sharp the federal cabinet minister responsible for the exhibition and  Lester B. Pearson  Safdie was given the blessing of the Expo 67 Director of Installations Edward Churchill to leave the planning committee in order to work on the building project as an independent architect .
 None
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:
 NA: Ottawa, Lester B. Pearson