1787
3 Customized and freeform design Traditional design for engineering involves individual part design in computer-aided design tools , with engineering expertise and intuition required to understand the limits of traditional subtractive manufacturing .
 engineering feature: Customized and freeform design; engineering feature: design; application: engineering; engineering feature: design; enabling technology: computer-aided design; application: engineering; concept or principle: limits; manufacturing process: traditional subtractive manufacturing
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: Customized and freeform design; engineering feature: design; application: engineering; engineering feature: design; enabling technology: computer-aided design; application: engineering; concept or principle: limits; manufacturing process: traditional subtractive manufacturing