2931
A significant microstructural inhomogeneity in EBM fabricated Co-Cr-Mo alloy along building direction .
 concept or principle: microstructural; manufacturing process: EBM; material: alloy; process parameter: building direction
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: microstructural, EBM, alloy, building direction 
Answer:
 concept or principle: microstructural; manufacturing process: EBM; material: alloy; process parameter: building direction