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The same year , Scorsese and De Niro collaborated for the first time on the gangster film Mean Streets .
 person: Scorsese; person: De Niro
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: Scorsese, De Niro 
Answer:
 person: Scorsese; person: De Niro