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The commercial 3D printers that use more advanced techniques to print objects are usually equipped with proprietary software which slice the 3D model and command the machine .
 machine or equipment: 3D printers; manufacturing process: print; concept or principle: software; concept or principle: slice; application: 3D model; machine or equipment: machine
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:
 machine or equipment: 3D printers; manufacturing process: print; concept or principle: software; concept or principle: slice; application: 3D model; machine or equipment: machine