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These events indicate the probability of material discontinuities ( defects ) in the metal additive manufacturing ( AM ) parts .
 concept or principle: probability; material: material; concept or principle: defects; manufacturing process: metal additive manufacturing; manufacturing process: AM
Given options, please tell me the categories of all the listed entity words.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} 
 Entities: probability, material, defects, metal additive manufacturing, AM 
Answer:
 concept or principle: probability; material: material; concept or principle: defects; manufacturing process: metal additive manufacturing; manufacturing process: AM