2074
Here the main challenge is finding stable process settings that allow for both the production of permeable and solid structures .
 process parameter: process settings; manufacturing process: production; engineering feature: permeable and solid structures
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: process settings, production, permeable and solid structures 
Answer:
 process parameter: process settings; manufacturing process: production; engineering feature: permeable and solid structures