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Each material layer is deposited one on top of the other , consecutively , forming a three-dimensional part .
 material: material; process parameter: layer; manufacturing process: forming; concept or principle: three-dimensional
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: material; process parameter: layer; manufacturing process: forming; concept or principle: three-dimensional