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Natural systems often use cellular structures and these are widely used in bio-inspiration for the use of lattices in engineering parts , hence the categorization as biomimetic .
 engineering feature: cellular structures; concept or principle: bio-inspiration; concept or principle: lattices; application: engineering; material: as
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: cellular structures; concept or principle: bio-inspiration; concept or principle: lattices; application: engineering; material: as