3072
It was possible to explain the microstructure at the nano level as well as correlating the wear and corrosion properties .
 concept or principle: microstructure; engineering feature: nano; material: as; material: as; concept or principle: wear; machanical property: corrosion properties
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: microstructure, nano, as, as, wear, corrosion properties 
Answer:
 concept or principle: microstructure; engineering feature: nano; material: as; material: as; concept or principle: wear; machanical property: corrosion properties