6322
The resulting understanding of the relationship between primary machine variables and prior beta grain widths is a key step toward enabling the location specific control of aB-built microstructure in the EBM process .
 machine or equipment: machine; concept or principle: grain; concept or principle: step; concept or principle: microstructure; manufacturing process: EBM
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: machine, grain, step, microstructure, EBM 
Answer:
 machine or equipment: machine; concept or principle: grain; concept or principle: step; concept or principle: microstructure; manufacturing process: EBM