24485
One of the earliest 20th century practitioners of this method were The Mills Brothers whose early recordings of the 1930 s clearly stated on the label that all instrumentation was done vocally .
 organization: The Mills Brothers
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: The Mills Brothers 
Answer:
 organization: The Mills Brothers