11515
They were then mentored for several years by Alton Ellis whom they met producing songs for their Natty Dread and Natty Dread Version albums and then again doing backing vocals for  him  at  DEB  Music .
 employee of: him, DEB
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:
 employee of: him, DEB