1025
Multiple impregnation methods including hot and wet vacuum were evaluated on their infiltration effectiveness .
 manufacturing process: impregnation; concept or principle: infiltration effectiveness
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: impregnation, infiltration effectiveness 
Answer:
 manufacturing process: impregnation; concept or principle: infiltration effectiveness