111664
For the winter moth , feeding on oak leaves early in the season maximized the amount of protein and nutrients available to the moth , while minimizing the amount of tannins produced by the tree .
 oak
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