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On 21 June 2010 , Global Radio announced plans to close Heart Cambridge and merge the station with Heart Peterborough as part of plans to reduce the Heart network of stations from 33 to 16 .
 location: Cambridge
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: Cambridge 
Answer:
 location: Cambridge