8478
The 3D printed and salt leached porous SMPU was observed to have the porosity in the range of 32.7–36 % and pore sizes of < 250 μm with anthe interconnected network .
 manufacturing process: 3D printed; material: salt; machanical property: porous; machanical property: porosity; process parameter: range; process parameter: pore sizes
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: 3D printed, salt, porous, porosity, range, pore sizes 
Answer:
 manufacturing process: 3D printed; material: salt; machanical property: porous; machanical property: porosity; process parameter: range; process parameter: pore sizes