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A fundamental understanding of the relationships between process parameters , microstructure and functional properties of built parts is critical for optimizing the additive manufacturing process and building parts with desired properties .
 concept or principle: process parameters; concept or principle: microstructure; concept or principle: properties; manufacturing process: additive manufacturing process; concept or principle: properties
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: process parameters, microstructure, properties, additive manufacturing process, properties 
Answer:
 concept or principle: process parameters; concept or principle: microstructure; concept or principle: properties; manufacturing process: additive manufacturing process; concept or principle: properties