2049
In situ quantitative multielemental analysis by LIBS is a perspective control or/and feedback tool to improve quality of compositionally graded materials in additive manufacturing .
 concept or principle: In situ; process parameter: feedback; concept or principle: quality; concept or principle: materials; manufacturing process: additive manufacturing
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: In situ, feedback, quality, materials, additive manufacturing 
Answer:
 concept or principle: In situ; process parameter: feedback; concept or principle: quality; concept or principle: materials; manufacturing process: additive manufacturing