1414
We report the integration of a novel split ring resonator ( SRR ) surface mapping technique directly into an AM process to make non-destructive in-line measurements of the local relative dielectric permittivity ( ϵr ) within 3D objects as they are formed .
 application: resonator; concept or principle: surface; manufacturing process: AM process; machine or equipment: dielectric; application: 3D objects
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: resonator, surface, AM process, dielectric, 3D objects 
Answer:
 application: resonator; concept or principle: surface; manufacturing process: AM process; machine or equipment: dielectric; application: 3D objects