9323
As the content of SS316L increases , the reduced carbides at grain boundaries and the increasing compactness of passive film improve the general and pitting corrosion resistance of the material .
 material: As; material: carbides; concept or principle: grain boundaries; concept or principle: pitting corrosion; material: material
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: As, carbides, grain boundaries, pitting corrosion, material 
Answer:
 material: As; material: carbides; concept or principle: grain boundaries; concept or principle: pitting corrosion; material: material