77851
On 2 March 2010 he put out a collaborative LP with Italian rapper , producer and DJ , Esa a.k.a. El Presidente , formerly with the group Otierre a.k.a. OTR .
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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:  
Answer:
 None