27030
Mr. Koff , along with the violinist Robert Mann , the violist Raphael Hillyer and the cellist Arthur Winograd , formed the Juilliard String Quartet in 1946 , at the request of the composer William Schuman , who was president of the Juilliard School .
 person of company: Robert Mann, Juilliard School; person of company: William Schuman, Juilliard School
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: ethnicity, place lived, geographic distribution, company industry, country of administrative divisions, administrative division of country, location contains, person of company, profession, ethnicity of people, company shareholder among major shareholders, sports team of location, religion, neighborhood of, company major shareholders, place of death, nationality, children, company founders, company founded place, country of capital, company advisors, sports team location of teams, place of birth 
Text: {0} 
Answer:
 person of company: Robert Mann, Juilliard School; person of company: William Schuman, Juilliard School