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Career Attwell started his career in non-league football with Denaby United , before signing for West Ham United in the 1937 – 38 season .
 person: Attwell; organization: Denaby United; organization: West Ham United
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: Attwell, Denaby United, West Ham United 
Answer:
 person: Attwell; organization: Denaby United; organization: West Ham United