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The complex , nonequilibrium physical , chemical , and metallurgical nature of additive manufacturing ( AM ) tends to lead to uncontrollable and unpredictable material and structural properties .
 application: metallurgical; manufacturing process: additive manufacturing; manufacturing process: AM; material: lead; material: material; concept or principle: properties
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: metallurgical, additive manufacturing, AM, lead, material, properties 
Answer:
 application: metallurgical; manufacturing process: additive manufacturing; manufacturing process: AM; material: lead; material: material; concept or principle: properties