8805
In order to further improve the achievable resolution , a continuous laser-exposed contour line ( spot size 20 μm ) on the outside of the projected envelope can be written with an additional scanning laser-system .
 process parameter: resolution; engineering feature: contour; process parameter: spot size; material: be; concept or principle: scanning
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: resolution, contour, spot size, be, scanning 
Answer:
 process parameter: resolution; engineering feature: contour; process parameter: spot size; material: be; concept or principle: scanning