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Modification of the interface is a great method to improve the wettability between fiber and polymer and hence the mechanical properties of CFRTPCs .
 concept or principle: interface; concept or principle: wettability; material: fiber; material: polymer; concept or principle: mechanical 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: interface, wettability, fiber, polymer, mechanical properties 
Answer:
 concept or principle: interface; concept or principle: wettability; material: fiber; material: polymer; concept or principle: mechanical properties