4317
Corrosion performance of clad deposit was influenced by the inhomogeneous distribution of intermixed iron from the base material on a test surface .
 concept or principle: Corrosion; concept or principle: distribution; material: iron; material: material; concept or principle: surface
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: Corrosion, distribution, iron, material, surface 
Answer:
 concept or principle: Corrosion; concept or principle: distribution; material: iron; material: material; concept or principle: surface