5057
In addition , the formation mechanism of RS in the laser cladding FGM layers was revealed by discussing the individual impact of each material property on RS .
 concept or principle: mechanism; manufacturing process: laser cladding; material: FGM layers; concept or principle: impact; concept or principle: material property
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: mechanism, laser cladding, FGM layers, impact, material property 
Answer:
 concept or principle: mechanism; manufacturing process: laser cladding; material: FGM layers; concept or principle: impact; concept or principle: material property