92539
Their sophisticated vocal R&B harmonies impressed American entertainer Michael Jackson , who signed the group to his record label , MJJ Music , after a demo tape was played to him by producer Teddy Riley in 1993 .
 person: Michael Jackson; organization: MJJ Music; person: Teddy Riley
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: Michael Jackson, MJJ Music, Teddy Riley 
Answer:
 person: Michael Jackson; organization: MJJ Music; person: Teddy Riley