7164
Large particles ejected from melt pool can not be completely removed by inert gas flow and affect subsequent SLM process .
 concept or principle: particles; material: melt pool; material: be; concept or principle: inert gas; manufacturing process: SLM; concept or principle: process
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: particles, melt pool, be, inert gas, SLM, process 
Answer:
 concept or principle: particles; material: melt pool; material: be; concept or principle: inert gas; manufacturing process: SLM; concept or principle: process