520
Speaking at the launch  AFT  president  Randi Weingarten  said that there was a need for quality peer-assessed lesson plans that was not currently being met by other resource-sharing sites .
 top members employees: AFT, Randi Weingarten
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:
 top members employees: AFT, Randi Weingarten