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We precisely mapped the surface morphology transformation at the demarcated zones over the processing time and explained the material removal mechanism .
 process characterization: surface morphology; material: material; concept or principle: mechanism
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: surface morphology, material, mechanism 
Answer:
 process characterization: surface morphology; material: material; concept or principle: mechanism