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nozzle diameter , feed rate and layer height ) to improve the quality of the manufactured parts .
 concept or principle: nozzle diameter; process parameter: feed; process parameter: layer height; concept or principle: quality; concept or principle: manufactured
Given options, please tell me the categories of all the listed entity words.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} 
 Entities: nozzle diameter, feed, layer height, quality, manufactured 
Answer:
 concept or principle: nozzle diameter; process parameter: feed; process parameter: layer height; concept or principle: quality; concept or principle: manufactured