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Electron beam melting ( EBM ) is a metal powder bed fusion additive manufacturing ( AM ) technology that makes possible the fabrication of three-dimensional near-net-shaped parts directly from computer models .
 manufacturing process: Electron beam melting; manufacturing process: EBM; manufacturing process: metal powder bed fusion additive manufacturing; manufacturing process: AM; concept or principle: technology; manufacturing process: fabrication; concept or principle: three-dimensional; enabling technology: computer
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: Electron beam melting, EBM, metal powder bed fusion additive manufacturing, AM, technology, fabrication, three-dimensional, computer 
Answer:
 manufacturing process: Electron beam melting; manufacturing process: EBM; manufacturing process: metal powder bed fusion additive manufacturing; manufacturing process: AM; concept or principle: technology; manufacturing process: fabrication; concept or principle: three-dimensional; enabling technology: computer