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c. 840 ) is traditionally considered to have been a bishop of Meneva ( modern St Davids ) in the medieval Welsh kingdom of Dyfed .
 location: St Davids
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: St Davids 
Answer:
 location: St Davids