111746
Trahanas is made by mixing flour , yoghurt or sour milk , and optionally cooked vegetables , salt , groats , and spices ( notably tarhana herb ) , letting the mixture ferment , then drying , and usually grinding and sieving the result .
 groats
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:
 groats