1372
2 shows an example of this design of WAAM system , used for the research and development at the University of Wollongong .
 engineering feature: design; machine or equipment: WAAM system; concept or principle: research
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:
 engineering feature: design; machine or equipment: WAAM system; concept or principle: research