1414
He was a member of Painters Eleven the group founded by William Ronald in 1953 to promote abstract painting in Canada and was soon encouraged in his art by the  American  art critic  Clement Greenberg  .
 origin: American, Clement Greenberg
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:
 origin: American, Clement Greenberg