1546
St. Louis ' own Chingy was an emerging  artist  mainly from the help he received from  Nelly  the biggest premiere rap artist to so far come out of the Gateway City .
 artist, Nelly
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; 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:
 artist, Nelly