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The generic bio-inspiration involves using design or guidelines from nature , which might be more beneficial when limits are imposed on the structure .
 concept or principle: bio-inspiration; engineering feature: design; material: be; concept or principle: limits; concept or principle: structure
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: bio-inspiration; engineering feature: design; material: be; concept or principle: limits; concept or principle: structure