125145
The lower altitudes are populated by oak , hickory , birch , beech and maple .
 oak, hickory, beech, 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:
 oak, hickory, beech, maple