276053
Stratification and mixing of digesta Digesta in the rumen is not uniform , but rather is stratified into gas , liquid , and particles of different sizes , densities , and other physical characteristics .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities:  
Answer:
 None