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The results demonstrate that the elastoplastic constitutive model developed in this study can effectively describe the mechanical behavior of SLA-printed materials .
 concept or principle: model; application: mechanical; concept or principle: materials
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, mechanical, materials 
Answer:
 concept or principle: model; application: mechanical; concept or principle: materials