1354
For instance , recent breakthroughs in WAAM technology have made it possible to fabricate aircraft landing gear ribs with a saving of approximately 78 % in raw material when compared with the traditional subtractive machining process .
 manufacturing process: WAAM; concept or principle: technology; manufacturing process: fabricate; machine or equipment: gear; material: raw material; manufacturing process: traditional subtractive machining process
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:
 manufacturing process: WAAM; concept or principle: technology; manufacturing process: fabricate; machine or equipment: gear; material: raw material; manufacturing process: traditional subtractive machining process