1592
This research will provide a guideline for the additive manufacturing of bimetals with the consideration of printing sequence to control interface formation for a crack-free structure .
 concept or principle: research; manufacturing process: additive manufacturing; concept or principle: interface; concept or principle: structure
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: research, additive manufacturing, interface, structure 
Answer:
 concept or principle: research; manufacturing process: additive manufacturing; concept or principle: interface; concept or principle: structure