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The metallic parts produced by AM often contain highly non-equilibrium microstructures , e.g .
 machine or equipment: metallic parts; manufacturing process: AM; material: microstructures
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: metallic parts, AM, microstructures 
Answer:
 machine or equipment: metallic parts; manufacturing process: AM; material: microstructures