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The tournament has been running since 1919 and involves a preliminary round where over 250 teams from all the Welsh counties compete within 64 groups .
 organization: Welsh
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: Welsh 
Answer:
 organization: Welsh