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Metal-based additive manufacturing techniques , such as selective laser melting and electron beam melting , are computer controlled fabrication process based on layer-wise manufacturing principles .
 manufacturing process: additive manufacturing; material: as; enabling technology: laser; manufacturing process: electron beam melting; enabling technology: computer; manufacturing process: fabrication; manufacturing process: manufacturing
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: as; enabling technology: laser; manufacturing process: electron beam melting; enabling technology: computer; manufacturing process: fabrication; manufacturing process: manufacturing