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This model can be potentially used as a tool to optimize the metal powder bed fusion process , through generating desired microstructure and resultant material properties .
 concept or principle: model; material: be; material: as; machine or equipment: tool; manufacturing process: metal powder bed fusion; concept or principle: microstructure; concept or principle: material properties
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: model, be, as, tool, metal powder bed fusion, microstructure, material properties 
Answer:
 concept or principle: model; material: be; material: as; machine or equipment: tool; manufacturing process: metal powder bed fusion; concept or principle: microstructure; concept or principle: material properties