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A material characterization is performed on raw materials and printed parts in the form of thermogravimetric analysis ( TGA ) , X-ray diffraction ( XRD ) , and scanning electron microscopy ( SEM ) .
 material: material; material: raw materials; process characterization: thermogravimetric analysis; process characterization: TGA; process characterization: X-ray diffraction; process characterization: XRD; process characterization: scanning electron microscopy; process characterization: SEM
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: material, raw materials, thermogravimetric analysis, TGA, X-ray diffraction, XRD, scanning electron microscopy, SEM 
Answer:
 material: material; material: raw materials; process characterization: thermogravimetric analysis; process characterization: TGA; process characterization: X-ray diffraction; process characterization: XRD; process characterization: scanning electron microscopy; process characterization: SEM