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The material property in AM process may greatly affect the final topological shape of scaffold , which may differ from the original CAD model obtained from topology optimization .
 concept or principle: material property; manufacturing process: AM process; engineering feature: scaffold; enabling technology: CAD model; engineering feature: topology optimization
Please list all entity words in the text that fit the category.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} 
Answer:
 concept or principle: material property; manufacturing process: AM process; engineering feature: scaffold; enabling technology: CAD model; engineering feature: topology optimization