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Additive manufacturing will be an option to develop prototypes or mechanical parts that will be made faster and cheaper than other techniques such as laser cladding or electron beam .
 manufacturing process: Additive manufacturing; material: be; concept or principle: prototypes; machine or equipment: mechanical parts; material: be; material: as; manufacturing process: cladding; concept or principle: electron 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:
 manufacturing process: Additive manufacturing; material: be; concept or principle: prototypes; machine or equipment: mechanical parts; material: be; material: as; manufacturing process: cladding; concept or principle: electron beam