4857
The criteria evaluated in this ranking model may be modified by each user , to extend this methodology to other desktop AM systems , including professional-grade machines .
 model, be, methodology, AM, machines
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:
 model, be, methodology, AM, machines