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Poems and Stories is a compilation of some of the lesser-known writings of J. R. R. Tolkien released in 1980 by George Allen & Unwin ( UK ) and in 1994 by Houghton Mifflin ( North America ) .
 person: J. R. R. Tolkien; organization: George Allen & Unwin; organization: Houghton Mifflin
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: J. R. R. Tolkien, George Allen & Unwin, Houghton Mifflin 
Answer:
 person: J. R. R. Tolkien; organization: George Allen & Unwin; organization: Houghton Mifflin