110079
In the western black tea industry , tea leaf grading is the process of evaluating products based on the quality and condition of the tea leaves themselves .
 tea, tea leaf grading
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:
 tea, tea leaf grading