5248
Three-dimensional ( 3D ) reconstruction of the x-ray tomographic image sequences focused at select porosities is presented .
 concept or principle: Three-dimensional; concept or principle: 3D; concept or principle: reconstruction; process characterization: x-ray; concept or principle: image; machanical property: porosities
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: Three-dimensional, 3D, reconstruction, x-ray, image, porosities 
Answer:
 concept or principle: Three-dimensional; concept or principle: 3D; concept or principle: reconstruction; process characterization: x-ray; concept or principle: image; machanical property: porosities