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Having been unable to break into the first-team on a regular basis for Luton , he joined non-league side Boston United in 1993 , making four league appearances , before moving to Germany to play for Bayer Uerdingen .
 organization: Luton; organization: Boston United; location: Germany; organization: Bayer Uerdingen
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: Luton, Boston United, Germany, Bayer Uerdingen 
Answer:
 organization: Luton; organization: Boston United; location: Germany; organization: Bayer Uerdingen