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River Song is a fictional character created by Steven Moffat and played primarily by Alex Kingston in the British science-fiction series Doctor Who .
 person: Steven Moffat; person: Alex Kingston
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: Steven Moffat, Alex Kingston 
Answer:
 person: Steven Moffat; person: Alex Kingston