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The general manufacturability of the optimized part by powder bed fusion is demonstrated by the manufacturing of a scaled prototype .
 concept or principle: manufacturability; manufacturing process: powder bed fusion; manufacturing process: manufacturing; concept or principle: prototype
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: manufacturability, powder bed fusion, manufacturing, prototype 
Answer:
 concept or principle: manufacturability; manufacturing process: powder bed fusion; manufacturing process: manufacturing; concept or principle: prototype