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The  ATCO  Group of Companies includes the following subsidiaries : ATCO was founded in  1947  with matching cash investments by Ron Southern and his father S.D. Southern under the name Alberta Trailer Hire renting utility trailers in the Calgary area .
 founded: ATCO, 1947
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:
 founded: ATCO, 1947