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A Deep Neural Network ( DNN ) attains 95.4 % per-pixel accuracy when differentiating four delamination severities 5 mm below the surface in PolyLactic Acid ( PLA ) widgets , and 98.6 % accuracy in differentiating acceptable from unacceptable states for the same components .
 Neural Network, accuracy, delamination, mm, surface, PolyLactic Acid, PLA, accuracy, components
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:
 Neural Network, accuracy, delamination, mm, surface, PolyLactic Acid, PLA, accuracy, components