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Drum Workshop  ( also known as DW Drums or simply DW ) is a drum and hardware manufacturing company based in  Oxnard  California .
 city of headquarters: Drum Workshop, Oxnard
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:  Drum Workshop, Oxnard 
Answer:
 city of headquarters: Drum Workshop, Oxnard