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The Additive manufacturing technologies familiarize many innovative and monetary gains when compared to conservative subtractive manufacturing methods in rapid prototyping ( RP ) and small production capacity .
 Additive manufacturing, subtractive manufacturing, rapid prototyping, RP, production capacity
Please list all entity words in the text that fit the category. Output format is "word1, 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:
 Additive manufacturing, subtractive manufacturing, rapid prototyping, RP, production capacity