4599
In fact , by use of a known material such as Nylon 6 , complex geometries can be 3D printed with different dielectric behavior .
 material, as, complex geometries, be, 3D printed, dielectric
Please list all entity words in the text that fit the category. Output format is "word1, 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, as, complex geometries, be, 3D printed, dielectric