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He was a co-founder and the lead guitarist of the alternative rock band R.E.M. He also plays mandolin on several R.E.M. songs .
 organization: R.E.M.; organization: R.E.M.
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: R.E.M., R.E.M. 
Answer:
 organization: R.E.M.; organization: R.E.M.