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Anisotropy of LB-PBF 316L SS specimens was attributed to the variation in layer orientation , affecting defects ’ directionality with respect to the loading direction .
 machanical property: Anisotropy; material: SS; concept or principle: variation; process parameter: layer; 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: Anisotropy, SS, variation, layer, defects 
Answer:
 machanical property: Anisotropy; material: SS; concept or principle: variation; process parameter: layer; concept or principle: defects