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While still Marqus de Sade , their first demos were recorded with Ozzy Osbourne 's guitarist Randy Rhoads ' brother Kelli on vocals .
 person: Randy Rhoads
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Randy Rhoads 
Answer:
 person: Randy Rhoads