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The new emerged technology of additive manufacturing ( AM ) , which is widely used in other industries such as aerospace and automotive , has the potential to significantly improve a lifespan of the structure by managing the residual stress fields and microstructure in the future monopiles , and moreover reduce the manufacturing cost .
 concept or principle: technology; manufacturing process: additive manufacturing; manufacturing process: AM; application: industries; material: as; application: aerospace; application: automotive; concept or principle: structure; machanical property: residual stress; concept or principle: microstructure; concept or principle: manufacturing cost
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:
 concept or principle: technology; manufacturing process: additive manufacturing; manufacturing process: AM; application: industries; material: as; application: aerospace; application: automotive; concept or principle: structure; machanical property: residual stress; concept or principle: microstructure; concept or principle: manufacturing cost