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The fabrication results demonstrate that the developed dual-material process can successfully produce 3D objects with spatial control over placement of both material and structure .
 manufacturing process: fabrication; concept or principle: dual-material; application: 3D objects; concept or principle: spatial control; material: material; concept or principle: structure
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:
 manufacturing process: fabrication; concept or principle: dual-material; application: 3D objects; concept or principle: spatial control; material: material; concept or principle: structure