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For example , developing an ace cultivar is extremely difficult , so , once farmers develop the desired traits in lily , they use grafting and budding to ensure the consistency of the new cultivar and its successful production on a commercial level .
 plant: cultivar
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
 Entities: cultivar 
Answer:
 plant: cultivar