323
The authors established a comparison between the physical and mechanical properties of SLA-manufactured alumina ceramics of different compositions and viscosity to those of subtractive-manufactured ceramics .
 concept or principle: mechanical properties; material: alumina; machanical property: viscosity; material: ceramics
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: mechanical properties; material: alumina; machanical property: viscosity; material: ceramics