5951
Bimetallic structures provide a unique solution to achieve site-specific functionalities and enhanced-property capabilities in engineering systems but suffer from bonding compatibility issues .
 concept or principle: solution; application: engineering; concept or principle: bonding
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: solution, engineering, bonding 
Answer:
 concept or principle: solution; application: engineering; concept or principle: bonding