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The post-processing operations in focus are finish machining ( FM ) , vibratory surface finishing ( VSF ) and drag finishing ( DF ) operations .
 concept or principle: post-processing; manufacturing process: finish machining; manufacturing process: surface finishing; machine or equipment: drag
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: post-processing, finish machining, surface finishing, drag 
Answer:
 concept or principle: post-processing; manufacturing process: finish machining; manufacturing process: surface finishing; machine or equipment: drag