1831
It may be possible to save material by printing a hole but the time taken to finish a partially-made hole may be the same , or even longer , than to drill a complete hole in a blank space .
 material: be; material: material; material: be; machine or equipment: drill; material: blank
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:
 material: be; material: material; material: be; machine or equipment: drill; material: blank