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For both the materials used in this study , aB-fabricated SLM parts contained significant chemical heterogeneity , either chemical microsegregation ( 316 L SS ) or a cellular interdendritic phase ( AlSi10Mg ) .
 concept or principle: materials; manufacturing process: SLM; concept or principle: chemical heterogeneity; concept or principle: microsegregation; material: 316 L SS; concept or principle: cellular interdendritic; material: AlSi10Mg
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: materials, SLM, chemical heterogeneity, microsegregation, 316 L SS, cellular interdendritic, AlSi10Mg 
Answer:
 concept or principle: materials; manufacturing process: SLM; concept or principle: chemical heterogeneity; concept or principle: microsegregation; material: 316 L SS; concept or principle: cellular interdendritic; material: AlSi10Mg