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He returned from injury on 2 April , starting in a 1 – 0 home win over Empoli , but sustained yet another injury to his adductor longus muscle in his right thigh before being substituted off in the 54th minute of that match ; further tests in the following days revealed he would be out for 20 days .
 organization: Empoli
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: Empoli 
Answer:
 organization: Empoli