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The effects of the design parameters on the mechanical behavior of the metamaterials were also demonstrated .
 engineering feature: design; application: mechanical; material: metamaterials
Given options, please tell me the categories of all the listed entity words.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} 
 Entities: design, mechanical, metamaterials 
Answer:
 engineering feature: design; application: mechanical; material: metamaterials