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What's Happening is the second album from the Australian hip hop artist  Katalyst  ( aka  Sydney  based producer Ashley Anderson ) .
 cities of residence: Katalyst, Sydney
Given options, please tell me the relationships of all the listed entity pairs.Output format is "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} 
 Entity Pairs:  Katalyst, Sydney 
Answer:
 cities of residence: Katalyst, Sydney