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Computer-aided system for tissue scaffolds is a further development based on these scaffold libraries , aiming to efficiently automate the entire design process for desired topologies .
 engineering feature: scaffolds; engineering feature: scaffold; concept or principle: design process; concept or principle: topologies
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:
 engineering feature: scaffolds; engineering feature: scaffold; concept or principle: design process; concept or principle: topologies