1759
Layer building can then be normally achieved by slicing the 3D set of nested or packed parts with their support structures .
 process parameter: Layer; material: be; concept or principle: slicing; concept or principle: 3D; engineering feature: support structures
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:
 process parameter: Layer; material: be; concept or principle: slicing; concept or principle: 3D; engineering feature: support structures