2380
Furthermore , the detrimental effects of surface roughness on fatigue life of LB-PBF 316L SS specimens was not significant , which may be due to the presence of large internal defects in the specimens .
 machanical property: surface roughness; machanical property: fatigue life; material: SS; material: be; concept or principle: defects
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: surface roughness, fatigue life, SS, be, defects 
Answer:
 machanical property: surface roughness; machanical property: fatigue life; material: SS; material: be; concept or principle: defects