1758
As mentioned above , the goal of biomimetic research is to learn generic design rules from natural systems to assist the development of optimized biomimetic materials which can be used widely in engineering systems .
 material: As; concept or principle: biomimetic; concept or principle: design rules; material: biomimetic materials; material: be; application: engineering
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:
 material: As; concept or principle: biomimetic; concept or principle: design rules; material: biomimetic materials; material: be; application: engineering