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The 3D foam printer performance is demonstrated through the construction of a 2.16-m-high statue of Sir Wilfrid Laurier , the seventh Prime Minister of Canada , at an accuracy of approximately 1 cm , which requires 38 h of printing time .
 3D, printer, performance, construction, accuracy
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:
 3D, printer, performance, construction, accuracy