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The solid-infilled ceramic specimen prepared via optimized parameters exhibited uniform structure and the surface roughness was 0.75μm , which greatly improved the surface quality .
 material: ceramic; concept or principle: parameters; concept or principle: structure; machanical property: surface roughness; process parameter: surface quality
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: ceramic, parameters, structure, surface roughness, surface quality 
Answer:
 material: ceramic; concept or principle: parameters; concept or principle: structure; machanical property: surface roughness; process parameter: surface quality