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Assortative mating most easily occurs if mating is linked to niche preference , as occurs in the apple maggot " Rhagoletis pomonella " , where individual flies from different races use volatile odors to discriminate between hawthorn and apple and look for mates on natal fruit .
 animal: apple maggot; plant: hawthorn; food: apple
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: apple maggot, hawthorn, apple 
Answer:
 animal: apple maggot; plant: hawthorn; food: apple