3823
Brewing by-products are " spent grain " and the sediment ( or " dregs " ) from the filtration process which may be dried and resold as " brewers dried yeast " for poultry feed , or made into yeast extract which is used in brands such as Vegemite and Marmite .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 None