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Thus , EDS , TKD and X-ray crystallography were performed right on this interface and revealed three main structures : a hexagonal matrix , a cubic structure and an ordered hexagonal one .
 process characterization: EDS; process characterization: X-ray; manufacturing process: crystallography; concept or principle: interface; engineering feature: hexagonal; engineering feature: cubic structure; engineering feature: hexagonal
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: EDS, X-ray, crystallography, interface, hexagonal, cubic structure, hexagonal 
Answer:
 process characterization: EDS; process characterization: X-ray; manufacturing process: crystallography; concept or principle: interface; engineering feature: hexagonal; engineering feature: cubic structure; engineering feature: hexagonal