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The 3D model is converted into a file format that is understood by AM machines .
 application: 3D model; manufacturing standard: file; machine or equipment: AM machines
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: 3D model, file, AM machines 
Answer:
 application: 3D model; manufacturing standard: file; machine or equipment: AM machines