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The model is used to demonstrate the effect of various process parameters for a simple cylindrical geometry and a more complex auxetic cell .
 concept or principle: model; concept or principle: process parameters; manufacturing process: simple; concept or principle: cylindrical; application: cell
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: manufacturing standard, machanical property, manufacturing process, material, engineering feature, process parameter, machine or equipment, application, process characterization, enabling technology, biomedical, concept or principle 
Text: {0} 
 Entities: model, process parameters, simple, cylindrical, cell 
Answer:
 concept or principle: model; concept or principle: process parameters; manufacturing process: simple; concept or principle: cylindrical; application: cell