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One of the major issues currently is the considerable surface roughness of additively manufactured aluminum alloys demanding post-processing procedures such as bead blasting or machining .
 machanical property: surface roughness; manufacturing process: additively manufactured; material: alloys; concept or principle: post-processing; material: as; manufacturing process: machining
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: surface roughness, additively manufactured, alloys, post-processing, as, machining 
Answer:
 machanical property: surface roughness; manufacturing process: additively manufactured; material: alloys; concept or principle: post-processing; material: as; manufacturing process: machining