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The technology is a powder bed fusion process by melting the metal powder locally using the focused laser beam .
 concept or principle: technology; manufacturing process: powder bed fusion process; manufacturing process: melting; material: metal powder; concept or principle: focused laser beam
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: technology; manufacturing process: powder bed fusion process; manufacturing process: melting; material: metal powder; concept or principle: focused laser beam