111666
Several species of caterpillar feed on maple leaves by " window feeding " on pieces of leaf and avoiding the tough areas , or those with a high lignin concentration .
 maple
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:
 maple