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The album reached the " Billboard " Top LPs & Tape chart 's number one spot on 28 April 1973 , and was so successful that the band returned two months later for another tour .
 organization: Billboard
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: Billboard 
Answer:
 organization: Billboard