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He became manager Bruce Rioch 's first signing at Arsenal and broke the club 's transfer fee record set at £ 2.5 " million .
 person: Bruce Rioch
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 person: Bruce Rioch