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Of these , the largest group is " Dioscorea " ( yams ) with about 450 species .
 location: Dioscorea
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: Dioscorea 
Answer:
 location: Dioscorea