20477
The larvae mainly feed on oak , " Crataegus " and " Rubus " species .
 oak, Crataegus, Rubus
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 oak, Crataegus, Rubus