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Ascendant is an album by Mark Northfield , released in March 2008 under his own record label , Substantive Recordings .
 person: Mark Northfield
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: Mark Northfield 
Answer:
 person: Mark Northfield