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But this is an interesting issue to be expected because , by fusing one material to another three-dimensionally using a dynamic gradient , the printed component can have the optimum properties of both materials .
 material: be; concept or principle: fusing; material: material; concept or principle: three-dimensionally; concept or principle: dynamic; machine or equipment: component; concept or principle: properties; concept or principle: materials
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:
 material: be; concept or principle: fusing; material: material; concept or principle: three-dimensionally; concept or principle: dynamic; machine or equipment: component; concept or principle: properties; concept or principle: materials