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The focus of this paper is on laser powder bed fusion , but elements can be applied to electron beam powder bed fusion or direct energy deposition techniques .
 manufacturing process: laser powder bed fusion; material: elements; material: be; concept or principle: electron beam; manufacturing process: bed fusion; manufacturing process: direct energy deposition
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:
 manufacturing process: laser powder bed fusion; material: elements; material: be; concept or principle: electron beam; manufacturing process: bed fusion; manufacturing process: direct energy deposition