5635
Furthermore , we quantify the vapour recoil pressure by in situ characterization of the deflection of the typical forward-ejected spatter .
 concept or principle: pressure; concept or principle: in situ; process characterization: spatter
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: pressure, in situ, spatter 
Answer:
 concept or principle: pressure; concept or principle: in situ; process characterization: spatter