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As more manufacturing processes and research institutions adopt customized manufacturing as a key element in their design strategies and finished products , the resulting mechanical properties of parts produced through additive manufacturing ( AM ) must be characterized and understood .
 material: As; manufacturing process: manufacturing processes; concept or principle: research; manufacturing process: manufacturing; material: as; material: element; engineering feature: design; concept or principle: mechanical properties; manufacturing process: additive manufacturing; manufacturing process: AM; material: be
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: As, manufacturing processes, research, manufacturing, as, element, design, mechanical properties, additive manufacturing, AM, be 
Answer:
 material: As; manufacturing process: manufacturing processes; concept or principle: research; manufacturing process: manufacturing; material: as; material: element; engineering feature: design; concept or principle: mechanical properties; manufacturing process: additive manufacturing; manufacturing process: AM; material: be