2207
It also contributes to a 21.8 % increase in low-angle grain boundaries ( LAGBs ) and a 98 MPa increase in yield strength .
 concept or principle: grain boundaries; concept or principle: MPa; machanical property: yield strength
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: grain boundaries, MPa, yield strength 
Answer:
 concept or principle: grain boundaries; concept or principle: MPa; machanical property: yield strength